Add build config and workflow for the ansible container

.github/workflows/container-build.yaml

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+name: Build Container
+
+on:
+  push:
+    branches: [main]
+    # Publish semver tags as releases.
+    tags: ['v*.*.*']
+  pull_request:
+    branches: [main]
+
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=semver,pattern=v{{version}}
+            type=semver,pattern=v{{major}}.{{minor}}
+            type=semver,pattern=v{{major}}
+            type=ref,event=branch
+            type=ref,event=pr
+            type=sha
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./container
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+# Builder Image
+
+FROM python:3.10-slim-bullseye as builder
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+      build-essential \
+      libffi-dev && \
+    apt-get clean -y
+
+RUN mkdir -p /srv/docker-ansible
+
+COPY requirements.txt /srv/docker-ansible/requirements.txt
+
+RUN python3 -m venv /srv/docker-ansible/env && \
+  /srv/docker-ansible/env/bin/pip install -r /srv/docker-ansible/requirements.txt
+
+# Final Image
+
+FROM python:3.10-slim-bullseye
+
+MAINTAINER New England Research Cloud (NERC) "https://nerc.mghpcc.org"
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+      ssh \
+      git \
+    && apt-get clean -y
+
+COPY --from=builder /srv/docker-ansible /srv/docker-ansible
+
+COPY lint.sh /srv/docker-ansible/env/bin/lint.sh
+
+ENTRYPOINT []
+
+CMD ["/srv/docker-ansible/env/bin/ansible-playbook"]

lint.sh

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+#!/bin/bash
+set -e
+/srv/docker-ansible/env/bin/ansible-lint --exclude ${HOME}/.ansible/roles/ $@

requirements.txt

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+ansible==8.2.0
+ansible-lint==6.17.2
+dnspython==2.4.2
+omsdk==1.2.509