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apply-manifest
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apply-manifest
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#!/usr/bin/python3 -u
# This is a hacky temporary script to apply an rpm-ostree manifest as part of a
# derived container build. It's only required because we're in this transitional
# state where some streams use the old way, and others use layering. Once all
# streams use layering, we could stop using manifests for the layered bits. (An
# obvious question here is whether we should keep extending the `rpm-ostree ex
# rebuild` stuff to keep using manifests even in a layered build. Though likely
# similar functionality will live in dnf instead.)
# Note this only supports the subset of the manifest spec actually used in
# `packages-openshift.yaml`.
import os
import shutil
import subprocess
import sys
import yaml
def runcmd(args):
print("Running:", ' '.join(args))
subprocess.check_call(args)
manifest_file = sys.argv[1]
manifest_dir = os.path.dirname(manifest_file)
with open(manifest_file) as f:
manifest = yaml.safe_load(f)
if len(manifest.get('packages', [])):
packages = []
for pkg in manifest['packages']:
packages += pkg.split()
dnf_install = ['dnf', 'install', '--setopt=tsflags=nodocs', '--noplugins', '-y'] + packages
# XXX: temporary hack for cri-o, which wants to create dirs under /opt
# https://github.com/CentOS/centos-bootc/issues/393
if 'cri-o' in packages:
os.makedirs("/var/opt", exist_ok=True)
# inject mounted-in repo files
extra_repos_dir = '/run/yum.repos.d'
copied_repo_files = []
if os.path.isdir(extra_repos_dir):
for file in os.listdir(extra_repos_dir):
src_path = os.path.join(extra_repos_dir, file)
if not os.path.isfile(src_path):
continue
if not file.endswith(".repo"):
continue
dest_path = os.path.join('/etc/yum.repos.d', file)
if os.path.exists(dest_path):
raise Exception(f"Repo file {dest_path} already exists")
print(f"Copying repo file {file} to /etc/yum.repos.d/")
shutil.copy(src_path, dest_path)
copied_repo_files += [dest_path]
runcmd(dnf_install)
# delete the repo files we injected
for repo in copied_repo_files:
os.unlink(repo)
if len(manifest.get('postprocess', [])):
for i, script in enumerate(manifest['postprocess']):
name = f"/tmp/postprocess-script-{i}"
with open(name, 'w') as f:
f.write(script)
os.chmod(name, 0o755)
runcmd([name])
os.unlink(name)