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Add a script to help users generate os_images and release_images
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| # generate_os_release_images.py | ||
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| ## Requriments | ||
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| ```shell | ||
| pip install -r ./pip-requirements.txt | ||
| ``` | ||
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| ## Useage | ||
| Can be used to generate `os_images` and `release_images`. | ||
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| Here's an example for multiple different ocp versions: | ||
| ```shell | ||
| ./generate_os_release_images.py -a x86_64 -v 4.12.29 -v 4.11.30 -v 4.13.2 -v 4.14.12 -v 4.15.1 | ||
| ``` |
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| #! /usr/bin/env python3 | ||
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| try: | ||
| from BeautifulSoup import BeautifulSoup | ||
| except ImportError: | ||
| from bs4 import BeautifulSoup | ||
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| import yaml | ||
| import semver | ||
| import requests | ||
| import re | ||
| import argparse | ||
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| DEBUG = False | ||
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| def generate_image_values(ocp_version, arch): | ||
| rhcos = requests.get( | ||
| f"https://mirror.openshift.com/pub/openshift-v4/dependencies/rhcos/{ocp_version.major}.{ocp_version.minor}" | ||
| ) | ||
| if not rhcos.ok: | ||
| raise ValueError( | ||
| f"Failed to find rhcos dependencies for version: {ocp_version.major}.{ocp_version.minor}" | ||
| ) | ||
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| page = BeautifulSoup(rhcos.content, "lxml") | ||
| versions = map(lambda p: p["href"].strip("/"), page.find_all("a")[1:-1]) | ||
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| os_version = None | ||
| for v in versions: | ||
| ver = semver.Version.parse(v) | ||
| if ver.compare(ocp_version) < 1 and ( | ||
| os_version is None or os_version.compare(ver) == -1 | ||
| ): | ||
| os_version = ver | ||
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| if os_version is None: | ||
| raise ValueError( | ||
| f"Failed to find a version <= {ocp_version} in {versions.join(', ')}" | ||
| ) | ||
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| release_info = requests.get( | ||
| f"https://mirror.openshift.com/pub/openshift-v4/{arch}/clients/ocp/{os_version}/release.txt" | ||
| ) | ||
| if not release_info.ok: | ||
| raise ValueError(f"Failed to find release.txt for version: {os_version}") | ||
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| rhcos_version_match = re.search( | ||
| r"^\s+machine-os (?P<rhcos_version>.+) Red Hat Enterprise Linux CoreOS$", | ||
| release_info.content.decode(), | ||
| re.MULTILINE, | ||
| ) | ||
| rhcos_version = rhcos_version_match.groupdict()["rhcos_version"] | ||
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| if DEBUG: | ||
| print(arch) | ||
| print(ocp_version) | ||
| print(os_version) | ||
| print(rhcos_version) | ||
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| result = { | ||
| "os_images": { | ||
| str(os_version): { | ||
| "openshift_version": f"{os_version.major}.{os_version.minor}", | ||
| "cpu_architecture": f"{arch}", | ||
| "url": f"https://mirror.openshift.com/pub/openshift-v4/{arch}/dependencies/rhcos/{os_version.major}.{os_version.minor}/{os_version}/rhcos-{os_version}-{arch}-live.{arch}.iso", | ||
| "rootfs_url": f"https://mirror.openshift.com/pub/openshift-v4/{arch}/dependencies/rhcos/{os_version.major}.{os_version.minor}/{os_version}/rhcos-live-rootfs.{arch}.img", | ||
| "version": f"{rhcos_version}", | ||
| }, | ||
| }, | ||
| "release_images": [ | ||
| { | ||
| "openshift_version": f"{ocp_version.major}.{ocp_version.minor}", | ||
| "cpu_architecture": arch, | ||
| "cpu_architectures": [arch], | ||
| "url": f"quay.io/openshift-release-dev/ocp-release:{ocp_version}-{arch}", | ||
| "version": str(ocp_version), | ||
| }, | ||
| ], | ||
| } | ||
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| return result | ||
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| def merge_results(results): | ||
| merged = { | ||
| "os_images": {}, | ||
| "release_images": [], | ||
| } | ||
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| for r in results: | ||
| for os_v, os in r["os_images"].items(): | ||
| merged["os_images"][os_v] = os | ||
| for os in r["release_images"]: | ||
| merged["release_images"].append(os) | ||
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| res = { | ||
| "os_images": [], | ||
| "release_images": merged["release_images"], | ||
| } | ||
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| for os in merged["os_images"].values(): | ||
| res["os_images"].append(os) | ||
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| return res | ||
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| def verify_urls(merged): | ||
| for os in merged["os_images"]: | ||
| url_head = requests.head(os["url"]) | ||
| if not url_head.ok: | ||
| raise ValueError(f"file not found at expected url {os['url']}") | ||
| rootfs_url_head = requests.head(os["rootfs_url"]) | ||
| if not rootfs_url_head.ok: | ||
| raise ValueError(f"file not found at expected url {os['rootfs_url']}") | ||
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| for release in merged["release_images"]: | ||
| url_head = requests.head(os["url"]) | ||
| if not url_head.ok: | ||
| raise ValueError(f"file not found at expected url {os['url']}") | ||
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| def main(ocp_versions, arch, verify): | ||
| results = [] | ||
| for v in ocp_versions: | ||
| results.append(generate_image_values(v, arch)) | ||
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| if DEBUG: | ||
| print(results) | ||
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| merged_results = merge_results(results) | ||
| if DEBUG: | ||
| print(merged_results) | ||
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| class IndentDumper(yaml.Dumper): | ||
| def increase_indent(self, flow=False, indentless=False): | ||
| return super(IndentDumper, self).increase_indent(flow, False) | ||
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| if verify: | ||
| verify_urls(merged_results) | ||
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| print(yaml.dump(merged_results, Dumper=IndentDumper)) | ||
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| if __name__ == "__main__": | ||
| parser = argparse.ArgumentParser() | ||
| parser.add_argument( | ||
| "-a", | ||
| "--arch", | ||
| help="target archictecture", | ||
| ) | ||
| parser.add_argument( | ||
| "-v", | ||
| "--version", | ||
| action="append", | ||
| ) | ||
| parser.add_argument( | ||
| "--skip-verify", | ||
| action="store_false", | ||
| default=True, | ||
| ) | ||
| parser.add_argument( | ||
| "--debug", | ||
| action="store_true", | ||
| default=False, | ||
| ) | ||
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| args = parser.parse_args() | ||
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| DEBUG = args.debug | ||
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| ocp_versions = [] | ||
| for v in args.version: | ||
| ocp_versions.append(semver.Version.parse(v)) | ||
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| main(ocp_versions=ocp_versions, arch=args.arch, verify=args.skip_verify) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| semver==3.0.2 | ||
| beautifulsoup4==4.12.3 |