Add build container pipeline

Signed-off-by: Mohammed Boukhalfa <mohammed.boukhalfa@est.tech>

jenkins/jobs/container_image_building.pipeline

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+ci_git_url = "https://github.com/Nordix/metal3-dev-tools.git"
+ci_git_credential_id = "nordix-metal3-ci-github-prod-token"
+ci_git_branch = "main"
+image_registry = "quay.io"
+image_registry_organization = "metal3-io"
+
+pipeline {
+    agent { label 'metal3-workers' }
+    options { ansiColor('xterm') }
+    environment {
+        CONTAINER_IMAGE_HUB = "${image_registry}"
+        CONTAINER_IMAGE_HUB_ORG = "${image_registry_organization}"
+        BUILD_CONTAINER_IMAGE_NAME = "${BUILD_CONTAINER_IMAGE_NAME}"
+        BUILD_CONTAINER_IMAGE_REPO = "${BUILD_CONTAINER_IMAGE_REPO}"
+        BUILD_CONTAINER_IMAGE_GIT_REFERENCE = "${BUILD_CONTAINER_IMAGE_GIT_REFERENCE}"
+        BUILD_CONTAINER_IMAGE_DOCKERFILE_LOCATION = "${BUILD_CONTAINER_IMAGE_DOCKERFILE_LOCATION}"
+    }
+    stages {
+        stage('Build and push docker image'){
+            options {
+              timeout(time: 30, unit: 'MINUTES')
+            }
+            steps {
+                withCredentials([usernamePassword(credentialsId: 'metal3ci-quay-credentials', usernameVariable: 'DOCKER_USER', passwordVariable: 'DOCKER_PASSWORD')])  {
+                    sh "docker login '${image_registry}' -u $DOCKER_USER -p $DOCKER_PASSWORD"
+                }
+                sh "./jenkins/scripts/build-container-image.sh"
+            }
+        }
+    }
+    post {
+      cleanup {
+          sh "docker logout '${image_registry}'"
+      }
+    }
+}

jenkins/scripts/build-container-image.sh

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+#!/usr/bin/env bash
+
+# This script is meant to be used by CI, to build and push container images to the container hub.
+# However, it can be used by human on a linux environment, with the following requirements:
+#  - An existing credentials towards the hub, with push and delete permissions.
+#  - Needed tools (git, docker, curl, etc. are installed)
+
+set -eu
+
+set -o pipefail
+
+HUB="${CONTAINER_IMAGE_HUB:-quay.io}"
+HUB_ORG="${CONTAINER_IMAGE_HUB_ORG:-metal3-io}"
+IMAGE_NAME="${BUILD_CONTAINER_IMAGE_NAME:-${1}}"
+REPO_URL="${BUILD_CONTAINER_IMAGE_REPO:-${2}}"
+GIT_REFERENCE="${BUILD_CONTAINER_IMAGE_GIT_REFERENCE:-main}"
+DOCKERFILE_DIRECTORY="${BUILD_CONTAINER_IMAGE_DOCKERFILE_LOCATION:-/}"
+REPO_LOCATION="/tmp/metal3-io"
+NEEDED_TOOLS=("git" "curl" "docker" "jq")
+__dir__=$(realpath "$(dirname "$0")")
+
+case "${GIT_REFERENCE}" in
+  *"refs/heads"*)
+    GIT_REFERENCE_TYPE="branch"
+    GIT_REFERENCE=$(echo "${GIT_REFERENCE}" | sed 's/refs\/heads\///')
+    echo "Detected branch name: ${GIT_REFERENCE}"
+    ;;
+  *"refs/tags"*)
+    GIT_REFERENCE_TYPE="tags"
+    GIT_REFERENCE=$(echo "${GIT_REFERENCE}" | sed 's/refs\/tags\///')
+    echo "Detected tag name: ${GIT_REFERENCE}"
+    ;;
+  *)
+    GIT_REFERENCE_TYPE="branch"
+    echo "No reference type detected. Treating as a branch name: ${GIT_REFERENCE}"
+    ;;
+esac
+
+check_tools() {
+  for tool in "${NEEDED_TOOLS[@]}"; do
+    type "${tool}" > /dev/null
+  done
+}
+
+list_tags() {
+  curl -s "https://${HUB}/v2/${HUB_ORG}/${IMAGE_NAME}/tags/list" | jq -r '.tags[]'
+}
+
+git_get_current_commit_short_hash() {
+  git rev-parse --short HEAD
+}
+
+get_date() {
+  # Should this be current date, or latest commit date?
+  date +%Y%m%d
+}
+
+get_image_path() {
+  image_tag=${1:?}
+  echo "${HUB}/${HUB_ORG}/${IMAGE_NAME}:${image_tag}"
+}
+
+build_container_image() {
+  image_tag=$(echo "${GIT_REFERENCE}" | sed 's/\//_/')
+  image_path=$(get_image_path "${image_tag}")
+  echo "Building the image as ${image_path}"
+  docker build -t "${image_path}" .
+  docker push "${image_path}"
+  if [[ "${GIT_REFERENCE_TYPE}" != "branch" ]]; then
+    return
+  fi
+  # If the image was built for a branch, we include some more tags
+  declare -a new_image_tags=()
+  new_image_tags+=("${GIT_REFERENCE}_$(get_date)_$(git_get_current_commit_short_hash)")
+  if [[ "${GIT_REFERENCE}" == "main" ]]; then
+    new_image_tags+=("latest")
+  fi
+  for new_tag in "${new_image_tags[@]}"; do
+    new_image_path=$(get_image_path "${new_tag}")
+    echo "Tagging the image as ${new_image_path}"
+    docker tag "${image_path}" "${new_image_path}"
+    docker push "${new_image_path}"
+  done
+}
+
+build_image() {
+  mkdir -p "${REPO_LOCATION}"
+  cd "${REPO_LOCATION}"
+  rm -rf "${IMAGE_NAME}"
+  git clone "${REPO_URL}" "${IMAGE_NAME}"
+  cd "${IMAGE_NAME}"
+  git checkout "${GIT_REFERENCE}"
+  cd "${REPO_LOCATION}/${IMAGE_NAME}${DOCKERFILE_DIRECTORY}"
+  build_container_image
+}
+
+check_tools
+build_image