Summary: Fixing Common Issues with Docker
Get a recap on the overview of fixing common issues in Docker.
We'll cover the following
- Docker Compose overview
- Accessing files in an image
- Working with the tar writer
- Formatting errors in YAML files
- Handling library and package errors in a Docker Compose file
- Troubleshooting image builds
- Handling library and package errors in a Dockerfile
- Reviewing Docker container exit codes
- Working with volume mounting
Docker Compose overview
We introduced what Docker Compose is. We defined Docker Compose as an orchestrator for running multiple containers using a YAML script for configuring services. We stated that Docker Compose uses a declarative concept for defining services, i.e., we define the desired state of our application, and it gives us just that. We explained that the Docker Compose YAML script consists of multiple sections like version
, services
, networks
, and volumes
. Here’s how a Docker Compose file is structured:
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