Simple container image publication (#762)

Reviewed-on: https://git.vdb.to/cerc-io/stack-orchestrator/pulls/762
Co-authored-by: David Boreham <[email protected]>
Co-committed-by: David Boreham <[email protected]>

stack_orchestrator/build/build_containers.py

@@ -27,8 +27,11 @@
 import click
 import importlib.resources
 from pathlib import Path
-from stack_orchestrator.util import include_exclude_check, get_parsed_stack_config, stack_is_external, warn_exit
+from stack_orchestrator.opts import opts
+from stack_orchestrator.util import include_exclude_check, get_parsed_stack_config, stack_is_external, error_exit, warn_exit
 from stack_orchestrator.base import get_npm_registry_url
+from stack_orchestrator.build.build_types import BuildContext
+from stack_orchestrator.build.publish import publish_image
 
 # TODO: find a place for this
 #    epilog="Config provided either in .env or settings.ini or env vars: CERC_REPO_BASE_DIR (defaults to ~/cerc)"
@@ -59,87 +62,73 @@ def make_container_build_env(dev_root_path: str,
     return container_build_env
 
 
-def process_container(stack: str,
-                      container,
-                      container_build_dir: str,
-                      container_build_env: dict,
-                      dev_root_path: str,
-                      quiet: bool,
-                      verbose: bool,
-                      dry_run: bool,
-                      continue_on_error: bool,
-                      ):
-    if not quiet:
-        print(f"Building: {container}")
+def process_container(build_context: BuildContext) -> bool:
+    if not opts.o.quiet:
+        print(f"Building: {build_context.container}")
 
-    default_container_tag = f"{container}:local"
-    container_build_env.update({"CERC_DEFAULT_CONTAINER_IMAGE_TAG": default_container_tag})
+    default_container_tag = f"{build_context.container}:local"
+    build_context.container_build_env.update({"CERC_DEFAULT_CONTAINER_IMAGE_TAG": default_container_tag})
 
     # Check if this is in an external stack
-    if stack_is_external(stack):
-        container_parent_dir = Path(stack).joinpath("container-build")
-        temp_build_dir = container_parent_dir.joinpath(container.replace("/", "-"))
+    if stack_is_external(build_context.stack):
+        container_parent_dir = Path(build_context.stack).joinpath("container-build")
+        temp_build_dir = container_parent_dir.joinpath(build_context.container.replace("/", "-"))
         temp_build_script_filename = temp_build_dir.joinpath("build.sh")
         # Now check if the container exists in the external stack.
         if not temp_build_script_filename.exists():
             # If not, revert to building an internal container
-            container_parent_dir = container_build_dir
+            container_parent_dir = build_context.container_build_dir
     else:
-        container_parent_dir = container_build_dir
+        container_parent_dir = build_context.container_build_dir
 
-    build_dir = container_parent_dir.joinpath(container.replace("/", "-"))
+    build_dir = container_parent_dir.joinpath(build_context.container.replace("/", "-"))
     build_script_filename = build_dir.joinpath("build.sh")
 
-    if verbose:
+    if opts.o.verbose:
         print(f"Build script filename: {build_script_filename}")
     if os.path.exists(build_script_filename):
         build_command = build_script_filename.as_posix()
     else:
-        if verbose:
+        if opts.o.verbose:
             print(f"No script file found: {build_script_filename}, using default build script")
-        repo_dir = container.split('/')[1]
+        repo_dir = build_context.container.split('/')[1]
         # TODO: make this less of a hack -- should be specified in some metadata somewhere
         # Check if we have a repo for this container. If not, set the context dir to the container-build subdir
-        repo_full_path = os.path.join(dev_root_path, repo_dir)
+        repo_full_path = os.path.join(build_context.dev_root_path, repo_dir)
         repo_dir_or_build_dir = repo_full_path if os.path.exists(repo_full_path) else build_dir
-        build_command = os.path.join(container_build_dir,
+        build_command = os.path.join(build_context.container_build_dir,
                                      "default-build.sh") + f" {default_container_tag} {repo_dir_or_build_dir}"
-    if not dry_run:
+    if not opts.o.dry_run:
         # No PATH at all causes failures with podman.
-        if "PATH" not in container_build_env:
-            container_build_env["PATH"] = os.environ["PATH"]
-        if verbose:
-            print(f"Executing: {build_command} with environment: {container_build_env}")
-        build_result = subprocess.run(build_command, shell=True, env=container_build_env)
-        if verbose:
+        if "PATH" not in build_context.container_build_env:
+            build_context.container_build_env["PATH"] = os.environ["PATH"]
+        if opts.o.verbose:
+            print(f"Executing: {build_command} with environment: {build_context.container_build_env}")
+        build_result = subprocess.run(build_command, shell=True, env=build_context.container_build_env)
+        if opts.o.verbose:
             print(f"Return code is: {build_result.returncode}")
         if build_result.returncode != 0:
-            print(f"Error running build for {container}")
-            if not continue_on_error:
-                print("FATAL Error: container build failed and --continue-on-error not set, exiting")
-                sys.exit(1)
-            else:
-                print("****** Container Build Error, continuing because --continue-on-error is set")
+            return False
+        else:
+            return True
     else:
         print("Skipped")
+        return True
 
 
 @click.command()
 @click.option('--include', help="only build these containers")
 @click.option('--exclude', help="don\'t build these containers")
 @click.option("--force-rebuild", is_flag=True, default=False, help="Override dependency checking -- always rebuild")
 @click.option("--extra-build-args", help="Supply extra arguments to build")
+@click.option("--publish-images", is_flag=True, default=False, help="Publish the built images in the specified image registry")
+@click.option("--image-registry", help="Specify the image registry for --publish-images")
 @click.pass_context
-def command(ctx, include, exclude, force_rebuild, extra_build_args):
+def command(ctx, include, exclude, force_rebuild, extra_build_args, publish_images, image_registry):
     '''build the set of containers required for a complete stack'''
 
-    quiet = ctx.obj.quiet
-    verbose = ctx.obj.verbose
-    dry_run = ctx.obj.dry_run
-    debug = ctx.obj.debug
     local_stack = ctx.obj.local_stack
     stack = ctx.obj.stack
-    continue_on_error = ctx.obj.continue_on_error
 
     # See: https://stackoverflow.com/questions/25389095/python-get-path-of-root-project-structure
     container_build_dir = Path(__file__).absolute().parent.parent.joinpath("data", "container-build")
@@ -150,12 +139,16 @@ def command(ctx, include, exclude, force_rebuild, extra_build_args):
     else:
         dev_root_path = os.path.expanduser(config("CERC_REPO_BASE_DIR", default="~/cerc"))
 
-    if not quiet:
+    if not opts.o.quiet:
         print(f'Dev Root is: {dev_root_path}')
 
     if not os.path.isdir(dev_root_path):
         print('Dev root directory doesn\'t exist, creating')
 
+    if publish_images:
+        if not image_registry:
+            error_exit("--image-registry must be supplied with --publish-images")
+
     # See: https://stackoverflow.com/a/20885799/1701505
     from stack_orchestrator import data
     with importlib.resources.open_text(data, "container-image-list.txt") as container_list_file:
@@ -170,21 +163,38 @@ def command(ctx, include, exclude, force_rebuild, extra_build_args):
     else:
         containers_in_scope = all_containers
 
-    if verbose:
+    if opts.o.verbose:
         print(f'Containers: {containers_in_scope}')
         if stack:
             print(f"Stack: {stack}")
 
     container_build_env = make_container_build_env(dev_root_path,
                                                    container_build_dir,
-                                                   debug,
+                                                   opts.o.debug,
                                                    force_rebuild,
                                                    extra_build_args)
 
     for container in containers_in_scope:
         if include_exclude_check(container, include, exclude):
-            process_container(stack, container, container_build_dir, container_build_env,
-                              dev_root_path, quiet, verbose, dry_run, continue_on_error)
+
+            build_context = BuildContext(
+                stack,
+                container,
+                container_build_dir,
+                container_build_env,
+                dev_root_path
+            )
+            result = process_container(build_context)
+            if result:
+                if publish_images:
+                    publish_image(container, image_registry)
+            else:
+                print(f"Error running build for {build_context.container}")
+                if not opts.o.continue_on_error:
+                    error_exit("container build failed and --continue-on-error not set, exiting")
+                    sys.exit(1)
+                else:
+                    print("****** Container Build Error, continuing because --continue-on-error is set")
         else:
-            if verbose:
+            if opts.o.verbose:
                 print(f"Excluding: {container}")

stack_orchestrator/build/build_types.py

@@ -0,0 +1,29 @@
+# Copyright © 2024 Vulcanize
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http:#www.gnu.org/licenses/>.
+
+
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Mapping
+
+
+@dataclass
+class BuildContext:
+    stack: str
+    container: str
+    container_build_dir: Path
+    container_build_env: Mapping[str,str]
+    dev_root_path: str
+

stack_orchestrator/build/build_webapp.py

@@ -26,6 +26,7 @@
 from pathlib import Path
 from stack_orchestrator.build import build_containers
 from stack_orchestrator.deploy.webapp.util import determine_base_container
+from stack_orchestrator.build.build_types import BuildContext
 
 
 @click.command()
@@ -65,8 +66,14 @@ def command(ctx, base_container, source_repo, force_rebuild, extra_build_args, t
     container_build_env = build_containers.make_container_build_env(dev_root_path, container_build_dir, debug,
                                                                     force_rebuild, extra_build_args)
 
-    build_containers.process_container(None, base_container, container_build_dir, container_build_env, dev_root_path, quiet,
-                                       verbose, dry_run, continue_on_error)
+    build_context_1 = BuildContext(
+        stack,
+        base_container,
+        container_build_dir,
+        container_build_env,
+        dev_root_path,
+    )
+    build_containers.process_container(build_context_1)
 
     # Now build the target webapp.  We use the same build script, but with a different Dockerfile and work dir.
     container_build_env["CERC_WEBAPP_BUILD_RUNNING"] = "true"
@@ -80,5 +87,11 @@ def command(ctx, base_container, source_repo, force_rebuild, extra_build_args, t
     else:
         container_build_env["CERC_CONTAINER_BUILD_TAG"] = tag
 
-    build_containers.process_container(None, base_container, container_build_dir, container_build_env, dev_root_path, quiet,
-                                       verbose, dry_run, continue_on_error)
+    build_context_2 = BuildContext(
+        stack,
+        base_container,
+        container_build_dir,
+        container_build_env,
+        dev_root_path,
+    )
+    build_containers.process_container(build_context_2)

stack_orchestrator/build/publish.py

@@ -0,0 +1,48 @@
+# Copyright © 2024 Vulcanize
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http:#www.gnu.org/licenses/>.
+
+from datetime import datetime
+from python_on_whales import DockerClient
+
+from stack_orchestrator.opts import opts
+from stack_orchestrator.util import error_exit
+
+
+def _publish_tag_for_image(local_image_tag: str, remote_repo: str, version: str):
+    # Turns image tags of the form: foo/bar:local into remote.repo/org/bar:deploy
+    (image_name, image_version) = local_image_tag.split(":")
+    if image_version == "local":
+        return f"{remote_repo}/{image_name}:{version}"
+    else:
+        error_exit("Asked to publish a non-locally built image")
+
+
+def publish_image(local_tag, registry):
+    if opts.o.verbose:
+        print(f"Publishing this image: {local_tag} to this registry: {registry}")
+    docker = DockerClient()
+    # Figure out the target image tag
+    # Eventually this version will be generated from the source repo state
+    # Using a timestemp is an intermediate step
+    version = datetime.now().strftime("%Y%m%d%H%M")
+    remote_tag = _publish_tag_for_image(local_tag, registry, version)
+    # Tag the image thus
+    if opts.o.debug:
+        print(f"Tagging {local_tag} to {remote_tag}")
+    docker.image.tag(local_tag, remote_tag)
+    # Push it to the desired registry
+    if opts.o.verbose:
+        print(f"Pushing image {remote_tag}")
+    docker.image.push(remote_tag)