Feat(containers): init lab containers for tech library

.github/workflows/container_build_child.yml

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+---
+# This workflow is triggered by the parent workflow and must not be triggered directly.
+
+name: Reusable build container workflow
+
+env:
+  # BUILDX_NO_DEFAULT_ATTESTATIONS must be set to build only arm64 and amd64 images.
+  # The devcontainers/[email protected] build will fail if this env variable is not set.
+  BUILDX_NO_DEFAULT_ATTESTATIONS: 1
+
+on:
+  workflow_call:
+    inputs:
+      container_name:
+        required: false
+        type: string
+        default: techlib-labs
+      image_tags:
+        required: false
+        type: string
+      platform:
+        required: false
+        type: string
+        default: linux/arm64/v8,linux/amd64
+      from_image:
+        required: false
+        type: string
+        default: ghcr.io/aristanetworks/avd/universal
+      from_variant:
+        required: false
+        type: string
+        default: latest
+      username:
+        required: false
+        type: string
+        default: avd
+      user_id:
+        required: false
+        type: string
+        default: 1000
+      group_id:
+        required: false
+        type: string
+        default: 1000
+      git_init:
+        required: false
+        type: boolean
+        default: true
+      clab_version:
+        required: false
+        type: string
+      ceos_lab_version:
+        required: false
+        type: string
+        default: latest
+
+jobs:
+  build_image:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Starting container build
+        run: echo "Starting container build. Be patient. 🐢"
+      - name: Checkout code ✅
+        uses: actions/checkout@v4
+
+      - name: Build image tags 🏷️
+        id: build-tags
+        run: |
+          if [ -z "${{ inputs.image_tags }}" ]; then
+            echo "No image tags provided. Building tags."
+            echo "image_tags=${{ inputs.from_variant }}-clab${{ inputs.clab_version }}-ceos${{ inputs.ceos_lab_version }}" >> $GITHUB_OUTPUT
+          else
+            echo "Using provided image tags."
+            echo "image_tags=${{ inputs.image_tags }}" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Setup QEMU for multi-arch builds 🏗️
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: ${{ inputs.platform }}
+
+      - name: Setup Docker buildX for multi-arch builds 🏗️
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to the container registry 🗝️
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Pre-build dev container image 🔨
+        uses: devcontainers/[email protected]
+        env:
+          FROM_IMAGE: ${{ inputs.from_image }}
+          FROM_VARIANT: ${{ inputs.from_variant }}
+          USERNAME: ${{ inputs.username }}
+          UID: ${{ inputs.user_id }}
+          GID: ${{ inputs.group_id }}
+          CLAB_VERSION: ${{ inputs.clab_version }}
+          CEOS_LAB_VERSION_ARG: ${{ inputs.ceos_lab_version }}
+          GIT_INIT_ARG: ${{ inputs.git_init }}
+        with:
+          subFolder: containers/${{ inputs.container_name }}
+          imageName: ghcr.io/${{ github.repository }}/${{ inputs.container_name }}
+          imageTag: ${{ steps.build-tags.outputs.image_tags }}
+          platform: ${{ inputs.platform }}
+          push: always

.github/workflows/container_build_parent_matrix.yml

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+---
+name: build container for CVaaS and AVD Demo, EVPN MLAG
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - .github/workflows/container_build_child.yml
+      - .github/workflows/container_build_parent_matrix.yml
+      - containers/**
+  workflow_dispatch:
+    branches: [main]
+
+jobs:
+  build-lab-containers:
+    uses: ./.github/workflows/container_build_child.yml
+    strategy:
+      matrix:
+        from_image: ["ghcr.io/aristanetworks/avd/universal"]
+        from_variant: ["python3.11-avd-v4.9.0"]
+        clab_version: ["0.54.2"]
+        ceos_lab_version: ["4.32.1F"]
+    with:
+      from_image: ${{ matrix.from_image }}
+      from_variant: ${{ matrix.from_variant }}
+      clab_version: ${{ matrix.clab_version }}
+      ceos_lab_version: ${{ matrix.ceos_lab_version }}

containers/techlib-labs/.devcontainer/Dockerfile

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+ARG FROM_IMAGE
+ARG FROM_VARIANT
+
+FROM ${FROM_IMAGE}:${FROM_VARIANT}
+
+ARG USERNAME
+ARG CLAB_VERSION
+ARG CEOS_LAB_VERSION_ARG
+ARG GIT_INIT_ARG
+
+ENV CEOS_LAB_VERSION=${CEOS_LAB_VERSION_ARG}
+ENV GIT_INIT=${GIT_INIT_ARG}
+
+USER root
+
+# install some basic tools inside the container
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+    sshpass \
+    iputils-ping \
+    htop \
+    && rm -rf /var/lib/apt/lists/* \
+    && rm -Rf /usr/share/doc && rm -Rf /usr/share/man \
+    && apt-get clean
+
+# copy postCreate script
+COPY ./postCreate.sh /bin/postCreate.sh
+RUN chmod +x /bin/postCreate.sh
+
+USER ${USERNAME}
+
+# install the latest containerlab, yamllint, cook-and-cut and eos-downloader
+RUN bash -c "$(curl -sL https://get.containerlab.dev)" -- -v ${CLAB_VERSION} \
+    && pip3 install --user yamllint \
+    && pip install --user "eos-downloader>=0.10.1" \
+    && pip install --user passlib

containers/techlib-labs/.devcontainer/devcontainer.json

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+{
+    "build": {
+        "dockerfile": "Dockerfile",
+        "args": {
+            "FROM_IMAGE": "${localEnv:FROM_IMAGE}",
+            "FROM_VARIANT": "${localEnv:FROM_VARIANT}",
+            "USERNAME": "${localEnv:USERNAME}",
+            "CLAB_VERSION": "${localEnv:CLAB_VERSION}",
+            "CEOS_LAB_VERSION_ARG": "${localEnv:CEOS_LAB_VERSION_ARG}",
+            "GIT_INIT_ARG": "${localEnv:GIT_INIT_ARG}"
+        }
+    },
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                // git essentials
+                "piotrpalarz.vscode-gitignore-generator",
+                "mhutchie.git-graph",
+                "donjayamanne.githistory",
+                // spell checker
+                "streetsidesoftware.code-spell-checker",
+                // drawio and tldraw
+                // excalidraw is pre-installed in universal
+                "hediet.vscode-drawio",
+                "tldraw-org.tldraw-vscode",
+                // markdown
+                "yzhang.markdown-all-in-one",
+                "bierner.markdown-checkbox",
+                "DavidAnson.vscode-markdownlint",
+                // various tools
+                "tuxtina.json2yaml",
+                "mutantdino.resourcemonitor"
+            ]
+        }
+    }
+}

containers/techlib-labs/.devcontainer/postCreate.sh

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+#!/usr/bin/env bash
+
+set +e
+
+ardl get eos --image-type cEOS --version ${CEOS_LAB_VERSION}  --import-docker
+
+# init demo dir as Git repo if requested for this demo env
+if ${GIT_INIT}; then
+  cd ${CONTAINERWSF}
+  git init
+  git config --global --add safe.directory ${PWD}
+  if [ -z "$(git config user.name)" ]; then git config user.name "Lab User"; fi
+  if [ -z "$(git config user.email)" ]; then git config user.email [email protected]; fi
+  git add .
+  git commit -m "git init"
+fi