Bash Script Init Container

A minimal Alpine-based container for running Bash scripts with common tools. Use as an init container or fork to customize for your own scripting needs.

Usage

Docker:

docker run --rm -it ghcr.io/<your-org>/<your-repo>:latest 'echo Hello World'

Kubernetes initContainer:

initContainers:
  - name: wait-for-db
    image: ghcr.io/<your-org>/<your-repo>:latest
    command:
      - |
        until nc -z db 5432; do
          echo "Waiting for database...";
          sleep 2;
        done

ECS Task Definition:

{
  "containerDefinitions": [
    {
      "name": "wait-for-db",
      "image": "ghcr.io/<your-org>/<your-repo>:latest",
      "command": [
        "until nc -z db 5432; do echo 'Waiting for database...'; sleep 2; done"
      ]
    }
  ]
}

Customization

• Change default tools by building with: docker build --build-arg PACKAGES="curl wget jq aws-cli git" -t my-init-container .
• Fork this repo to add scripts, tools, or CI steps.

Included Tools

• bash, curl, wget, jq, aws-cli (customizable)

Security

• Automated vulnerability scans (Trivy)
• SBOM and provenance attestation for each build
• Minimal permissions and regular cache invalidation

Important Notice: This image runs as root. It is recommended to run it with a read-only filesystem and writable volume mounts.