feat: add apko/build command to the orb (#14)

Co-authored-by: Justin Burr <juburr@users.noreply.github.com>

.circleci/test-deploy.yml

@@ -27,11 +27,18 @@ jobs:
       - image: cimg/base:current-22.04
     steps:
       - checkout
-      # Run your orb's commands to validate them.
       - apko-orb/install
       - run:
           name: Verify Install
           command: command -v apko
+      - run:
+          name: Log Apko Version
+          command: apko version
+      - apko-orb/build:
+          config_path: src/tests/gdal-runtime.yaml
+          image_uri: ghcr.io/juburr/apko-orb/gdal-runtime-test:latest
+          log_level: debug
+          output_path: new-directory/gdal-runtime.tar
 workflows:
   test-deploy:
     jobs:

src/commands/build.yml

@@ -0,0 +1,25 @@
+description: Builds a container using apko.
+parameters:
+  config_path:
+    type: string
+    description: Path to a the YAML configuration file.
+  image_uri:
+    type: string
+    description: Image and tag of the output container image.
+  log_level:
+    type: enum
+    enum: ["debug", "info", "warn", "error", "fatal", "panic"]
+    default: "debug"
+    description: Logging level to use.
+  output_path:
+    type: string
+    description: Output filename for the final TAR file.
+steps:
+  - run:
+      name: Build Apko Image
+      environment:
+        PARAM_CONFIG_PATH: << parameters.config_path >>
+        PARAM_IMAGE_URI: << parameters.image_uri >>
+        PARAM_LOG_LEVEL: << parameters.log_level >>
+        PARAM_OUTPUT_PATH: << parameters.output_path >>
+      command: << include(scripts/build.sh) >>

src/examples/example.yml

@@ -4,13 +4,18 @@ description: >
 usage:
   version: 2.1
   orbs:
-    apko: juburr/apko-orb@0.2.6
+    apko: juburr/apko-orb@0.3.0
   jobs:
     build-images:
       docker:
         - image: cimg/base:current-22.04
       steps:
+        - checkout
         - apko/install
+        - apko/build:
+            config_path: src/containers/runtimes/gdal.yaml
+            image_uri: ghcr.io/juburr/apko-orb/gdal-runtime:latest
+            output_path: gdal-runtime.tar
   workflows:
     use-my-orb:
       jobs:

src/scripts/build.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+set -e
+
+# Ensure CircleCI environment variables can be passed in as orb parameters
+CONFIG_PATH=$(circleci env subst "${PARAM_CONFIG_PATH}")
+IMAGE_URI=$(circleci env subst "${PARAM_IMAGE_URI}")
+LOG_LEVEL=$(circleci env subst "${PARAM_LOG_LEVEL}")
+OUTPUT_PATH=$(circleci env subst "${PARAM_OUTPUT_PATH}")
+
+# Computed parameters
+OUTPUT_DIR=$(dirname "${OUTPUT_PATH}")
+
+# Print command parameters for debugging purposes.
+echo "Running Apko build with the following parameters:"
+echo "  CONFIG_PATH: ${CONFIG_PATH}"
+echo "  IMAGE_URI: ${IMAGE_URI}"
+echo "  LOG_LEVEL: ${LOG_LEVEL}"
+echo "  OUTPUT_DIR: ${OUTPUT_DIR}"
+echo "  OUTPUT_PATH: ${OUTPUT_PATH}"
+echo ""
+
+# Validate configuration YAML file path
+if [[ ! -f "${CONFIG_PATH}" ]]; then
+    echo "Configuration YAML does not exist at: ${CONFIG_PATH}"
+    exit 1
+fi
+
+# Create output directory if it does not yet exist
+if [[ -d "${OUTPUT_DIR}" ]]; then
+    echo "Output directory already exists: ${OUTPUT_DIR}"
+else
+    echo "Creating directory ${OUTPUT_DIR}..."
+    mkdir -p "${OUTPUT_DIR}"
+    echo "  Done."
+fi
+
+# Build image
+echo "Building container image with apko..."
+apko build --log-level "${LOG_LEVEL}" "${CONFIG_PATH}" "${IMAGE_URI}" "${OUTPUT_PATH}"

src/tests/gdal-runtime.yaml

@@ -0,0 +1,22 @@
+contents:
+  keyring:
+    - https://packages.wolfi.dev/os/wolfi-signing.rsa.pub
+  repositories:
+    - https://packages.wolfi.dev/os
+  packages:
+    - ca-certificates-bundle
+    - gdal-tools
+    - glibc
+    - openssl
+    - tzdata
+
+accounts:
+  groups:
+    - groupname: nonroot
+      gid: 65532
+  users:
+    - username: nonroot
+      uid: 65532
+
+archs:
+  - amd64