#!/usr/bin/python # (c) 2017, Alberto Murillo # # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import absolute_import, division, print_function __metaclass__ = type ANSIBLE_METADATA = {'metadata_version': '1.1', 'status': ['preview'], 'supported_by': 'community'} DOCUMENTATION = ''' --- module: swupd short_description: Manages updates and bundles in ClearLinux systems. description: - Manages updates and bundles with the swupd bundle manager, which is used by the Clear Linux Project for Intel Architecture. version_added: "2.3" author: Alberto Murillo (@albertomurillo) options: contenturl: description: - URL pointing to the contents of available bundles. If not specified, the contents are retrieved from clearlinux.org. format: description: - The format suffix for version file downloads. For example [1,2,3,staging,etc]. If not specified, the default format is used. manifest: description: - The manifest contains information about the bundles at certaion version of the OS. Specify a Manifest version to verify against that version or leave unspecified to verify against the current version. aliases: [release, version] name: description: - Name of the (I)bundle to install or remove. aliases: [bundle] state: description: - Indicates the desired (I)bundle state. C(present) ensures the bundle is installed while C(absent) ensures the (I)bundle is not installed. default: present choices: [present, absent] update: description: - Updates the OS to the latest version. url: description: - Overrides both I(contenturl) and I(versionurl). verify: description: - Verify content for OS version. versionurl: description: - URL for version string download. ''' EXAMPLES = ''' - name: Update the OS to the latest version swupd: update: yes - name: Installs the "foo" bundle swupd: name: foo state: present - name: Removes the "foo" bundle swupd: name: foo state: absent - name: Check integrity of filesystem swupd: verify: yes - name: Downgrade OS to release 12920 swupd: verify: yes manifest: 12920 ''' RETURN = ''' stdout: description: stdout of swupd returned: always type: string stderr: description: stderr of swupd returned: always type: string ''' import os from ansible.module_utils.basic import AnsibleModule class Swupd(object): FILES_NOT_MATCH = "files did not match" FILES_REPLACED = "missing files were replaced" FILES_FIXED = "files were fixed" FILES_DELETED = "files were deleted" def __init__(self, module): # Fail if swupd is not found self.module = module self.swupd_cmd = module.get_bin_path("swupd", False) if not self.swupd_cmd: module.fail_json(msg="Could not find swupd.") # Initialize parameters for key in module.params.keys(): setattr(self, key, module.params[key]) # Initialize return values self.changed = False self.failed = False self.msg = None self.rc = None self.stderr = "" self.stdout = "" def _run_cmd(self, cmd): self.rc, self.stdout, self.stderr = self.module.run_command(cmd, check_rc=False) def _get_cmd(self, command): cmd = "%s %s" % (self.swupd_cmd, command) if self.format: cmd += " --format=%s" % self.format if self.manifest: cmd += " --manifest=%s" % self.manifest if self.url: cmd += " --url=%s" % self.url else: if self.contenturl and command != "check-update": cmd += " --contenturl=%s" % self.contenturl if self.versionurl: cmd += " --versionurl=%s" % self.versionurl return cmd def _is_bundle_installed(self, bundle): try: os.stat("/usr/share/clear/bundles/%s" % bundle) except OSError: return False return True def _needs_update(self): cmd = self._get_cmd("check-update") self._run_cmd(cmd) if self.rc == 0: return True if self.rc == 1: return False self.failed = True self.msg = "Failed to check for updates" def _needs_verify(self): cmd = self._get_cmd("verify") self._run_cmd(cmd) if self.rc != 0: self.failed = True self.msg = "Failed to check for filesystem inconsistencies." if self.FILES_NOT_MATCH in self.stdout: return True return False def install_bundle(self, bundle): """Installs a bundle with `swupd bundle-add bundle`""" if self.module.check_mode: self.module.exit_json(changed=not self._is_bundle_installed(bundle)) if self._is_bundle_installed(bundle): self.msg = "Bundle %s is already installed" % bundle return cmd = self._get_cmd("bundle-add %s" % bundle) self._run_cmd(cmd) if self.rc == 0: self.changed = True self.msg = "Bundle %s installed" % bundle return if self.rc == 18: self.msg = "Bundle name %s is invalid" % bundle return self.failed = True self.msg = "Failed to install bundle %s" % bundle def remove_bundle(self, bundle): """Removes a bundle with `swupd bundle-remove bundle`""" if self.module.check_mode: self.module.exit_json(changed=self._is_bundle_installed(bundle)) if not self._is_bundle_installed(bundle): self.msg = "Bundle %s not installed" return cmd = self._get_cmd("bundle-remove %s" % bundle) self._run_cmd(cmd) if self.rc == 0: self.changed = True self.msg = "Bundle %s removed" % bundle return self.failed = True self.msg = "Failed to remove bundle %s" % bundle def update_os(self): """Updates the os with `swupd update`""" if self.module.check_mode: self.module.exit_json(changed=self._needs_update()) if not self._needs_update(): self.msg = "There are no updates available" return cmd = self._get_cmd("update") self._run_cmd(cmd) if self.rc == 0: self.changed = True self.msg = "Update successful" return self.failed = True self.msg = "Failed to check for updates" def verify_os(self): """Verifies filesystem against specified or current version""" if self.module.check_mode: self.module.exit_json(changed=self._needs_verify()) if not self._needs_verify(): self.msg = "No files where changed" return cmd = self._get_cmd("verify --fix") self._run_cmd(cmd) if self.rc == 0 and (self.FILES_REPLACED in self.stdout or self.FILES_FIXED in self.stdout or self.FILES_DELETED in self.stdout): self.changed = True self.msg = "Fix successful" return self.failed = True self.msg = "Failed to verify the OS" def main(): """The main function.""" module = AnsibleModule( argument_spec=dict( contenturl=dict(type="str"), format=dict(type="str"), manifest=dict(aliases=["release", "version"], type="int"), name=dict(aliases=["bundle"], type="str"), state=dict(default="present", choices=["present", "absent"], type="str"), update=dict(default=False, type="bool"), url=dict(type="str"), verify=dict(default=False, type="bool"), versionurl=dict(type="str"), ), required_one_of=[["name", "update", "verify"]], mutually_exclusive=[["name", "update", "verify"]], supports_check_mode=True ) swupd = Swupd(module) name = module.params["name"] state = module.params["state"] update = module.params["update"] verify = module.params["verify"] if update: swupd.update_os() elif verify: swupd.verify_os() elif state == "present": swupd.install_bundle(name) elif state == "absent": swupd.remove_bundle(name) else: swupd.failed = True if swupd.failed: module.fail_json(msg=swupd.msg, stdout=swupd.stdout, stderr=swupd.stderr) else: module.exit_json(changed=swupd.changed, msg=swupd.msg, stdout=swupd.stdout, stderr=swupd.stderr) if __name__ == '__main__': main()