fix github_env

podman-build-publish/action.yaml

@@ -39,43 +39,25 @@ runs:
       run: |
         set -euo pipefail
 
-        # Keep Podman defaults aligned with runner build workflows.
+        rm -rf "${RUNNER_TEMP}/podman-root" "${RUNNER_TEMP}/podman-runroot"
-        podman_root="${RUNNER_TEMP}/podman-root"
+        mkdir -p "${RUNNER_TEMP}/podman-root" "${RUNNER_TEMP}/podman-runroot"
-        podman_runroot="${RUNNER_TEMP}/podman-runroot"
-        storage_driver="vfs"
-        build_isolation="chroot"
 
-        rm -rf "${podman_root}" "${podman_runroot}"
+        # Validate tags early so failures are caught before build starts
-        mkdir -p "${podman_root}" "${podman_runroot}"
-
-        # Export for use in subsequent steps
-        {
-          echo "PODMAN_ROOT=${podman_root}"
-          echo "PODMAN_RUNROOT=${podman_runroot}"
-          echo "STORAGE_DRIVER=${storage_driver}"
-          echo "BUILD_ISOLATION=${build_isolation}"
-          echo "IMAGE_BASE=registry.noctrl.eu/${{ inputs.image-name }}"
-        } >> "${GITHUB_ENV}"
-
-        # Parse and validate tags
         mapfile -t tags < <(printf '%s\n' "${{ inputs.tags }}" | tr ', ' '\n\n' | sed '/^$/d')
         if [[ ${#tags[@]} -eq 0 ]]; then
           echo "ERROR: no tags resolved from inputs.tags" >&2
           exit 1
         fi
 
-        # Export tags as newline-separated string for subsequent steps
-        (IFS=$'\n'; echo "IMAGE_TAGS=${tags[*]}") >> "${GITHUB_ENV}"
-
     - id: login
       shell: bash
       run: |
         set -euo pipefail
 
         podman_args=(
-          --root "${PODMAN_ROOT}"
+          --root "${RUNNER_TEMP}/podman-root"
-          --runroot "${PODMAN_RUNROOT}"
+          --runroot "${RUNNER_TEMP}/podman-runroot"
-          --storage-driver "${STORAGE_DRIVER}"
+          --storage-driver vfs
         )
 
         echo "Logging in to registry: registry.noctrl.eu"
@@ -87,12 +69,13 @@ runs:
         set -euo pipefail
 
         podman_args=(
-          --root "${PODMAN_ROOT}"
+          --root "${RUNNER_TEMP}/podman-root"
-          --runroot "${PODMAN_RUNROOT}"
+          --runroot "${RUNNER_TEMP}/podman-runroot"
-          --storage-driver "${STORAGE_DRIVER}"
+          --storage-driver vfs
         )
 
-        build_cmd=(podman "${podman_args[@]}" build --isolation "${BUILD_ISOLATION}" -f "${{ inputs.containerfile }}")
+        image_base="registry.noctrl.eu/${{ inputs.image-name }}"
+        build_cmd=(podman "${podman_args[@]}" build --isolation chroot -f "${{ inputs.containerfile }}")
 
         # Add build args
         while IFS= read -r build_arg; do
@@ -104,9 +87,9 @@ runs:
         echo "Building image with tags:"
         while IFS= read -r tag; do
           [[ -z "${tag}" ]] && continue
-          echo "  ${IMAGE_BASE}:${tag}"
+          echo "  ${image_base}:${tag}"
-          build_cmd+=(-t "${IMAGE_BASE}:${tag}")
+          build_cmd+=(-t "${image_base}:${tag}")
-        done <<< "${IMAGE_TAGS}"
+        done < <(printf '%s\n' "${{ inputs.tags }}" | tr ', ' '\n\n' | sed '/^$/d')
 
         build_cmd+=("${{ inputs.context }}")
         "${build_cmd[@]}"
@@ -117,14 +100,16 @@ runs:
         set -euo pipefail
 
         podman_args=(
-          --root "${PODMAN_ROOT}"
+          --root "${RUNNER_TEMP}/podman-root"
-          --runroot "${PODMAN_RUNROOT}"
+          --runroot "${RUNNER_TEMP}/podman-runroot"
-          --storage-driver "${STORAGE_DRIVER}"
+          --storage-driver vfs
         )
 
+        image_base="registry.noctrl.eu/${{ inputs.image-name }}"
+
         echo "Pushing image tags:"
         while IFS= read -r tag; do
           [[ -z "${tag}" ]] && continue
-          echo "  ${IMAGE_BASE}:${tag}"
+          echo "  ${image_base}:${tag}"
-          podman "${podman_args[@]}" push "${IMAGE_BASE}:${tag}"
+          podman "${podman_args[@]}" push "${image_base}:${tag}"
-        done <<< "${IMAGE_TAGS}"
+        done < <(printf '%s\n' "${{ inputs.tags }}" | tr ', ' '\n\n' | sed '/^$/d')