Container Technology

  1. Docker Platform
    1. Docker Architecture
      1. Docker Components Overview
        1. Client-Server Architecture
          1. Component Interaction
          2. Docker Daemon (dockerd)
            1. Daemon Responsibilities
              1. Image Management
                1. Container Lifecycle
                  1. Network Management
                    1. Volume Management
                    2. Daemon Configuration
                      1. Configuration Files
                        1. Runtime Options
                        2. Security Considerations
                          1. Daemon Socket Security
                            1. User Permissions
                              1. Rootless Mode
                            2. Docker Client
                              1. Command Line Interface
                                1. Command Structure
                                  1. Global Options
                                  2. REST API Communication
                                    1. API Endpoints
                                      1. Authentication
                                      2. Remote Docker Access
                                        1. Docker Context
                                          1. SSH Connections
                                        2. Docker Objects
                                          1. Images
                                            1. Image Layers
                                              1. Image Metadata
                                              2. Containers
                                                1. Container Metadata
                                                  1. Container State
                                                  2. Networks
                                                    1. Bridge Networks
                                                      1. Default Bridge
                                                        1. Custom Bridges
                                                        2. Host Networks
                                                          1. Direct Host Access
                                                            1. Performance Considerations
                                                            2. Overlay Networks
                                                              1. Multi-Host Networking
                                                                1. Swarm Integration
                                                                2. None Networks
                                                                  1. Network Isolation
                                                                3. Volumes
                                                                  1. Named Volumes
                                                                    1. Volume Drivers
                                                                      1. Volume Management
                                                                      2. Bind Mounts
                                                                        1. Host Path Mounting
                                                                          1. Permission Considerations
                                                                          2. tmpfs Mounts
                                                                            1. In-Memory Storage
                                                                              1. Temporary Data
                                                                        2. Docker Command Line Interface
                                                                          1. Image Management Commands
                                                                            1. docker build
                                                                              1. Build Context
                                                                                1. Build Arguments
                                                                                  1. Multi-Platform Builds
                                                                                  2. docker pull
                                                                                    1. Image Resolution
                                                                                      1. Authentication
                                                                                      2. docker push
                                                                                        1. Registry Authentication
                                                                                          1. Layer Upload
                                                                                          2. docker images
                                                                                            1. Image Listing
                                                                                              1. Filtering Options
                                                                                              2. docker rmi
                                                                                                1. Image Removal
                                                                                                  1. Dependency Handling
                                                                                                  2. docker tag
                                                                                                    1. Image Tagging
                                                                                                      1. Tag Management
                                                                                                      2. docker history
                                                                                                        1. Layer History
                                                                                                          1. Size Analysis
                                                                                                        2. Container Management Commands
                                                                                                          1. docker run
                                                                                                            1. Container Creation and Start
                                                                                                              1. Runtime Options
                                                                                                                1. Port Mapping
                                                                                                                  1. Volume Mounting
                                                                                                                    1. Environment Variables
                                                                                                                      1. Resource Limits
                                                                                                                      2. Interactive Mode
                                                                                                                        1. Detached Mode
                                                                                                                        2. docker start
                                                                                                                          1. Starting Stopped Containers
                                                                                                                            1. Attach Options
                                                                                                                            2. docker stop
                                                                                                                              1. Graceful Container Shutdown
                                                                                                                                1. Timeout Configuration
                                                                                                                                2. docker restart
                                                                                                                                  1. Container Restart Process
                                                                                                                                  2. docker ps
                                                                                                                                    1. Container Listing
                                                                                                                                      1. Filtering and Formatting
                                                                                                                                      2. docker logs
                                                                                                                                        1. Log Retrieval
                                                                                                                                          1. Log Following
                                                                                                                                            1. Log Drivers
                                                                                                                                            2. docker exec
                                                                                                                                              1. Command Execution in Containers
                                                                                                                                                1. Interactive Sessions
                                                                                                                                                  1. User and Working Directory
                                                                                                                                                  2. docker cp
                                                                                                                                                    1. File Transfer
                                                                                                                                                      1. Archive Handling
                                                                                                                                                      2. docker rm
                                                                                                                                                        1. Container Removal
                                                                                                                                                          1. Force Removal
                                                                                                                                                          2. docker inspect
                                                                                                                                                            1. Detailed Object Information
                                                                                                                                                              1. JSON Output Format
                                                                                                                                                            2. System Management Commands
                                                                                                                                                              1. docker system df
                                                                                                                                                                1. Disk Usage Analysis
                                                                                                                                                                2. docker system prune
                                                                                                                                                                  1. Cleanup Operations
                                                                                                                                                                    1. Selective Pruning
                                                                                                                                                                    2. docker stats
                                                                                                                                                                      1. Real-Time Resource Usage
                                                                                                                                                                        1. Container Monitoring
                                                                                                                                                                      2. Resource Management
                                                                                                                                                                        1. CPU Constraints
                                                                                                                                                                          1. CPU Shares
                                                                                                                                                                            1. CPU Quotas
                                                                                                                                                                              1. CPU Sets
                                                                                                                                                                              2. Memory Constraints
                                                                                                                                                                                1. Memory Limits
                                                                                                                                                                                  1. Swap Accounting
                                                                                                                                                                                    1. OOM Killer
                                                                                                                                                                                    2. Storage Constraints
                                                                                                                                                                                      1. Disk Quotas
                                                                                                                                                                                        1. Device Read/Write Limits
                                                                                                                                                                                        2. Network Constraints
                                                                                                                                                                                          1. Bandwidth Limiting
                                                                                                                                                                                      2. Creating Container Images with Dockerfile
                                                                                                                                                                                        1. Dockerfile Fundamentals
                                                                                                                                                                                          1. Dockerfile Structure
                                                                                                                                                                                            1. Instruction Format
                                                                                                                                                                                              1. Build Context
                                                                                                                                                                                              2. Dockerfile Instructions
                                                                                                                                                                                                1. FROM
                                                                                                                                                                                                  1. Base Image Selection
                                                                                                                                                                                                    1. Multi-Stage FROM
                                                                                                                                                                                                    2. RUN
                                                                                                                                                                                                      1. Command Execution
                                                                                                                                                                                                        1. Layer Creation
                                                                                                                                                                                                          1. Shell vs Exec Form
                                                                                                                                                                                                          2. CMD
                                                                                                                                                                                                            1. Default Command
                                                                                                                                                                                                              1. Runtime Override
                                                                                                                                                                                                              2. ENTRYPOINT
                                                                                                                                                                                                                1. Container Entry Point
                                                                                                                                                                                                                  1. CMD Interaction
                                                                                                                                                                                                                  2. COPY
                                                                                                                                                                                                                    1. File Copying
                                                                                                                                                                                                                      1. Ownership and Permissions
                                                                                                                                                                                                                      2. ADD
                                                                                                                                                                                                                        1. Advanced File Operations
                                                                                                                                                                                                                          1. URL Downloads
                                                                                                                                                                                                                            1. Archive Extraction
                                                                                                                                                                                                                            2. WORKDIR
                                                                                                                                                                                                                              1. Working Directory
                                                                                                                                                                                                                                1. Path Resolution
                                                                                                                                                                                                                                2. EXPOSE
                                                                                                                                                                                                                                  1. Port Documentation
                                                                                                                                                                                                                                    1. Runtime Port Mapping
                                                                                                                                                                                                                                    2. ENV
                                                                                                                                                                                                                                      1. Environment Variables
                                                                                                                                                                                                                                        1. Variable Expansion
                                                                                                                                                                                                                                        2. ARG
                                                                                                                                                                                                                                          1. Build Arguments
                                                                                                                                                                                                                                            1. Scope and Lifetime
                                                                                                                                                                                                                                            2. VOLUME
                                                                                                                                                                                                                                              1. Volume Declaration
                                                                                                                                                                                                                                                1. Anonymous Volumes
                                                                                                                                                                                                                                                2. USER
                                                                                                                                                                                                                                                  1. User Context
                                                                                                                                                                                                                                                    1. Security Implications
                                                                                                                                                                                                                                                    2. HEALTHCHECK
                                                                                                                                                                                                                                                      1. Container Health Monitoring
                                                                                                                                                                                                                                                        1. Health Check Commands
                                                                                                                                                                                                                                                        2. LABEL
                                                                                                                                                                                                                                                          1. Metadata Addition
                                                                                                                                                                                                                                                            1. Label Standards
                                                                                                                                                                                                                                                            2. ONBUILD
                                                                                                                                                                                                                                                              1. Trigger Instructions
                                                                                                                                                                                                                                                                1. Inheritance Patterns
                                                                                                                                                                                                                                                              2. Multi-Stage Builds
                                                                                                                                                                                                                                                                1. Build Stage Separation
                                                                                                                                                                                                                                                                  1. Artifact Copying Between Stages
                                                                                                                                                                                                                                                                    1. Image Size Optimization
                                                                                                                                                                                                                                                                      1. Build Tool Isolation
                                                                                                                                                                                                                                                                      2. Dockerfile Best Practices
                                                                                                                                                                                                                                                                        1. Layer Optimization
                                                                                                                                                                                                                                                                          1. Instruction Ordering
                                                                                                                                                                                                                                                                            1. Layer Caching
                                                                                                                                                                                                                                                                              1. Combining Commands
                                                                                                                                                                                                                                                                              2. Image Size Reduction
                                                                                                                                                                                                                                                                                1. Minimal Base Images
                                                                                                                                                                                                                                                                                  1. Cleanup Operations
                                                                                                                                                                                                                                                                                    1. Multi-Stage Patterns
                                                                                                                                                                                                                                                                                    2. Build Performance
                                                                                                                                                                                                                                                                                      1. Cache Utilization
                                                                                                                                                                                                                                                                                        1. Parallel Builds
                                                                                                                                                                                                                                                                                          1. Build Context Optimization
                                                                                                                                                                                                                                                                                          2. Security Considerations
                                                                                                                                                                                                                                                                                            1. Non-Root Users
                                                                                                                                                                                                                                                                                              1. Secret Management
                                                                                                                                                                                                                                                                                                1. Vulnerability Minimization
                                                                                                                                                                                                                                                                                                2. Maintainability
                                                                                                                                                                                                                                                                                                  1. Clear Documentation
                                                                                                                                                                                                                                                                                                    1. Consistent Patterns
                                                                                                                                                                                                                                                                                                      1. Version Pinning
                                                                                                                                                                                                                                                                                                  2. Docker Compose for Multi-Container Applications
                                                                                                                                                                                                                                                                                                    1. Docker Compose Overview
                                                                                                                                                                                                                                                                                                      1. Purpose and Benefits
                                                                                                                                                                                                                                                                                                        1. Use Cases
                                                                                                                                                                                                                                                                                                        2. Compose File Format
                                                                                                                                                                                                                                                                                                          1. YAML Structure
                                                                                                                                                                                                                                                                                                            1. Version Specifications
                                                                                                                                                                                                                                                                                                              1. File Naming Conventions
                                                                                                                                                                                                                                                                                                              2. Service Definition
                                                                                                                                                                                                                                                                                                                1. Service Configuration
                                                                                                                                                                                                                                                                                                                  1. Image Specification
                                                                                                                                                                                                                                                                                                                    1. Build Configuration
                                                                                                                                                                                                                                                                                                                      1. Container Configuration
                                                                                                                                                                                                                                                                                                                      2. Environment Variables
                                                                                                                                                                                                                                                                                                                        1. Variable Definition
                                                                                                                                                                                                                                                                                                                          1. Variable Files
                                                                                                                                                                                                                                                                                                                            1. Variable Substitution
                                                                                                                                                                                                                                                                                                                            2. Service Dependencies
                                                                                                                                                                                                                                                                                                                              1. depends_on Directive
                                                                                                                                                                                                                                                                                                                                1. Startup Order
                                                                                                                                                                                                                                                                                                                                  1. Health Check Dependencies
                                                                                                                                                                                                                                                                                                                                2. Networking in Compose
                                                                                                                                                                                                                                                                                                                                  1. Default Network Creation
                                                                                                                                                                                                                                                                                                                                    1. Custom Network Definition
                                                                                                                                                                                                                                                                                                                                      1. Network Drivers
                                                                                                                                                                                                                                                                                                                                        1. Network Configuration
                                                                                                                                                                                                                                                                                                                                        2. Service Discovery
                                                                                                                                                                                                                                                                                                                                          1. DNS Resolution
                                                                                                                                                                                                                                                                                                                                            1. Service Names
                                                                                                                                                                                                                                                                                                                                          2. Volume Management
                                                                                                                                                                                                                                                                                                                                            1. Named Volumes
                                                                                                                                                                                                                                                                                                                                              1. Volume Definition
                                                                                                                                                                                                                                                                                                                                                1. Volume Drivers
                                                                                                                                                                                                                                                                                                                                                2. Bind Mounts
                                                                                                                                                                                                                                                                                                                                                  1. Host Path Mapping
                                                                                                                                                                                                                                                                                                                                                  2. Volume Sharing
                                                                                                                                                                                                                                                                                                                                                    1. Inter-Service Data Sharing
                                                                                                                                                                                                                                                                                                                                                  3. Compose CLI Operations
                                                                                                                                                                                                                                                                                                                                                    1. docker-compose up
                                                                                                                                                                                                                                                                                                                                                      1. Service Startup
                                                                                                                                                                                                                                                                                                                                                        1. Build and Start
                                                                                                                                                                                                                                                                                                                                                          1. Detached Mode
                                                                                                                                                                                                                                                                                                                                                          2. docker-compose down
                                                                                                                                                                                                                                                                                                                                                            1. Service Shutdown
                                                                                                                                                                                                                                                                                                                                                              1. Resource Cleanup
                                                                                                                                                                                                                                                                                                                                                              2. docker-compose build
                                                                                                                                                                                                                                                                                                                                                                1. Image Building
                                                                                                                                                                                                                                                                                                                                                                  1. Build Arguments
                                                                                                                                                                                                                                                                                                                                                                  2. docker-compose logs
                                                                                                                                                                                                                                                                                                                                                                    1. Log Aggregation
                                                                                                                                                                                                                                                                                                                                                                      1. Service Filtering
                                                                                                                                                                                                                                                                                                                                                                      2. docker-compose exec
                                                                                                                                                                                                                                                                                                                                                                        1. Command Execution
                                                                                                                                                                                                                                                                                                                                                                          1. Service Selection
                                                                                                                                                                                                                                                                                                                                                                          2. docker-compose scale
                                                                                                                                                                                                                                                                                                                                                                            1. Service Scaling
                                                                                                                                                                                                                                                                                                                                                                              1. Load Distribution
                                                                                                                                                                                                                                                                                                                                                                              2. docker-compose ps
                                                                                                                                                                                                                                                                                                                                                                                1. Service Status
                                                                                                                                                                                                                                                                                                                                                                                2. docker-compose restart
                                                                                                                                                                                                                                                                                                                                                                                  1. Service Restart

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                                                                                                                                                                                                                                                                                                                                                                            Go to top

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                                                                                                                                                                                                                                                                                                                                                                            4. Container Orchestration Fundamentals