diff options
Diffstat (limited to 'roles/lib_utils/action_plugins')
| -rw-r--r-- | roles/lib_utils/action_plugins/generate_pv_pvcs_list.py | 157 | ||||
| -rw-r--r-- | roles/lib_utils/action_plugins/sanity_checks.py | 181 |
2 files changed, 338 insertions, 0 deletions
diff --git a/roles/lib_utils/action_plugins/generate_pv_pvcs_list.py b/roles/lib_utils/action_plugins/generate_pv_pvcs_list.py new file mode 100644 index 000000000..eb13a58ba --- /dev/null +++ b/roles/lib_utils/action_plugins/generate_pv_pvcs_list.py @@ -0,0 +1,157 @@ +""" +Ansible action plugin to generate pv and pvc dictionaries lists +""" + +from ansible.plugins.action import ActionBase +from ansible import errors + + +class ActionModule(ActionBase): + """Action plugin to execute health checks.""" + + def get_templated(self, var_to_template): + """Return a properly templated ansible variable""" + return self._templar.template(self.task_vars.get(var_to_template)) + + def build_common(self, varname=None): + """Retrieve common variables for each pv and pvc type""" + volume = self.get_templated(str(varname) + '_volume_name') + size = self.get_templated(str(varname) + '_volume_size') + labels = self.task_vars.get(str(varname) + '_labels') + if labels: + labels = self._templar.template(labels) + else: + labels = dict() + access_modes = self.get_templated(str(varname) + '_access_modes') + return (volume, size, labels, access_modes) + + def build_pv_nfs(self, varname=None): + """Build pv dictionary for nfs storage type""" + host = self.task_vars.get(str(varname) + '_host') + if host: + self._templar.template(host) + elif host is None: + groups = self.task_vars.get('groups') + default_group_name = self.get_templated('openshift_persistent_volumes_default_nfs_group') + if groups and default_group_name and default_group_name in groups and len(groups[default_group_name]) > 0: + host = groups['oo_nfs_to_config'][0] + else: + raise errors.AnsibleModuleError("|failed no storage host detected") + volume, size, labels, access_modes = self.build_common(varname=varname) + directory = self.get_templated(str(varname) + '_nfs_directory') + path = directory + '/' + volume + return dict( + name="{0}-volume".format(volume), + capacity=size, + labels=labels, + access_modes=access_modes, + storage=dict( + nfs=dict( + server=host, + path=path))) + + def build_pv_openstack(self, varname=None): + """Build pv dictionary for openstack storage type""" + volume, size, labels, access_modes = self.build_common(varname=varname) + filesystem = self.get_templated(str(varname) + '_openstack_filesystem') + volume_id = self.get_templated(str(varname) + '_openstack_volumeID') + return dict( + name="{0}-volume".format(volume), + capacity=size, + labels=labels, + access_modes=access_modes, + storage=dict( + cinder=dict( + fsType=filesystem, + volumeID=volume_id))) + + def build_pv_glusterfs(self, varname=None): + """Build pv dictionary for glusterfs storage type""" + volume, size, labels, access_modes = self.build_common(varname=varname) + endpoints = self.get_templated(str(varname) + '_glusterfs_endpoints') + path = self.get_templated(str(varname) + '_glusterfs_path') + read_only = self.get_templated(str(varname) + '_glusterfs_readOnly') + return dict( + name="{0}-volume".format(volume), + capacity=size, + labels=labels, + access_modes=access_modes, + storage=dict( + glusterfs=dict( + endpoints=endpoints, + path=path, + readOnly=read_only))) + + def build_pv_dict(self, varname=None): + """Check for the existence of PV variables""" + kind = self.task_vars.get(str(varname) + '_kind') + if kind: + kind = self._templar.template(kind) + create_pv = self.task_vars.get(str(varname) + '_create_pv') + if create_pv and self._templar.template(create_pv): + if kind == 'nfs': + return self.build_pv_nfs(varname=varname) + + elif kind == 'openstack': + return self.build_pv_openstack(varname=varname) + + elif kind == 'glusterfs': + return self.build_pv_glusterfs(varname=varname) + + elif not (kind == 'object' or kind == 'dynamic'): + msg = "|failed invalid storage kind '{0}' for component '{1}'".format( + kind, + varname) + raise errors.AnsibleModuleError(msg) + return None + + def build_pvc_dict(self, varname=None): + """Check for the existence of PVC variables""" + kind = self.task_vars.get(str(varname) + '_kind') + if kind: + kind = self._templar.template(kind) + create_pv = self.task_vars.get(str(varname) + '_create_pv') + if create_pv: + create_pv = self._templar.template(create_pv) + create_pvc = self.task_vars.get(str(varname) + '_create_pvc') + if create_pvc: + create_pvc = self._templar.template(create_pvc) + if kind != 'object' and create_pv and create_pvc: + volume, size, _, access_modes = self.build_common(varname=varname) + return dict( + name="{0}-claim".format(volume), + capacity=size, + access_modes=access_modes) + return None + + def run(self, tmp=None, task_vars=None): + """Run generate_pv_pvcs_list action plugin""" + result = super(ActionModule, self).run(tmp, task_vars) + # Ignore settting self.task_vars outside of init. + # pylint: disable=W0201 + self.task_vars = task_vars or {} + + result["changed"] = False + result["failed"] = False + result["msg"] = "persistent_volumes list and persistent_volume_claims list created" + vars_to_check = ['openshift_hosted_registry_storage', + 'openshift_hosted_router_storage', + 'openshift_hosted_etcd_storage', + 'openshift_logging_storage', + 'openshift_loggingops_storage', + 'openshift_metrics_storage', + 'openshift_prometheus_storage', + 'openshift_prometheus_alertmanager_storage', + 'openshift_prometheus_alertbuffer_storage'] + persistent_volumes = [] + persistent_volume_claims = [] + for varname in vars_to_check: + pv_dict = self.build_pv_dict(varname) + if pv_dict: + persistent_volumes.append(pv_dict) + pvc_dict = self.build_pvc_dict(varname) + if pvc_dict: + persistent_volume_claims.append(pvc_dict) + result["persistent_volumes"] = persistent_volumes + result["persistent_volume_claims"] = persistent_volume_claims + return result diff --git a/roles/lib_utils/action_plugins/sanity_checks.py b/roles/lib_utils/action_plugins/sanity_checks.py new file mode 100644 index 000000000..09ce55e8f --- /dev/null +++ b/roles/lib_utils/action_plugins/sanity_checks.py @@ -0,0 +1,181 @@ +""" +Ansible action plugin to ensure inventory variables are set +appropriately and no conflicting options have been provided. +""" +import re + +from ansible.plugins.action import ActionBase +from ansible import errors + +# Valid values for openshift_deployment_type +VALID_DEPLOYMENT_TYPES = ('origin', 'openshift-enterprise') + +# Tuple of variable names and default values if undefined. +NET_PLUGIN_LIST = (('openshift_use_openshift_sdn', True), + ('openshift_use_flannel', False), + ('openshift_use_nuage', False), + ('openshift_use_contiv', False), + ('openshift_use_calico', False)) + +ENTERPRISE_TAG_REGEX_ERROR = """openshift_image_tag must be in the format +v#.#[.#[.#]]. Examples: v1.2, v3.4.1, v3.5.1.3, +v3.5.1.3.4, v1.2-1, v1.2.3-4, v1.2.3-4.5, v1.2.3-4.5.6 +You specified openshift_image_tag={}""" + +ORIGIN_TAG_REGEX_ERROR = """openshift_image_tag must be in the format +v#.#.#[-optional.#]. Examples: v1.2.3, v3.5.1-alpha.1 +You specified openshift_image_tag={}""" + +ORIGIN_TAG_REGEX = {'re': '(^v?\\d+\\.\\d+\\.\\d+(-[\\w\\-\\.]*)?$)', + 'error_msg': ORIGIN_TAG_REGEX_ERROR} +ENTERPRISE_TAG_REGEX = {'re': '(^v\\d+\\.\\d+(\\.\\d+)*(-\\d+(\\.\\d+)*)?$)', + 'error_msg': ENTERPRISE_TAG_REGEX_ERROR} +IMAGE_TAG_REGEX = {'origin': ORIGIN_TAG_REGEX, + 'openshift-enterprise': ENTERPRISE_TAG_REGEX} + +CONTAINERIZED_NO_TAG_ERROR_MSG = """To install a containerized Origin release, +you must set openshift_release or openshift_image_tag in your inventory to +specify which version of the OpenShift component images to use. +(Suggestion: add openshift_release="x.y" to inventory.)""" + + +def to_bool(var_to_check): + """Determine a boolean value given the multiple + ways bools can be specified in ansible.""" + # http://yaml.org/type/bool.html + yes_list = (True, 1, "True", "1", "true", "TRUE", + "Yes", "yes", "Y", "y", "YES", + "on", "ON", "On") + return var_to_check in yes_list + + +class ActionModule(ActionBase): + """Action plugin to execute sanity checks.""" + def template_var(self, hostvars, host, varname): + """Retrieve a variable from hostvars and template it. + If undefined, return None type.""" + res = hostvars[host].get(varname) + if res is None: + return None + return self._templar.template(res) + + def check_openshift_deployment_type(self, hostvars, host): + """Ensure a valid openshift_deployment_type is set""" + openshift_deployment_type = self.template_var(hostvars, host, + 'openshift_deployment_type') + if openshift_deployment_type not in VALID_DEPLOYMENT_TYPES: + type_strings = ", ".join(VALID_DEPLOYMENT_TYPES) + msg = "openshift_deployment_type must be defined and one of {}".format(type_strings) + raise errors.AnsibleModuleError(msg) + return openshift_deployment_type + + def check_python_version(self, hostvars, host, distro): + """Ensure python version is 3 for Fedora and python 2 for others""" + ansible_python = self.template_var(hostvars, host, 'ansible_python') + if distro == "Fedora": + if ansible_python['version']['major'] != 3: + msg = "openshift-ansible requires Python 3 for {};".format(distro) + msg += " For information on enabling Python 3 with Ansible," + msg += " see https://docs.ansible.com/ansible/python_3_support.html" + raise errors.AnsibleModuleError(msg) + else: + if ansible_python['version']['major'] != 2: + msg = "openshift-ansible requires Python 2 for {};".format(distro) + + def check_image_tag_format(self, hostvars, host, openshift_deployment_type): + """Ensure openshift_image_tag is formatted correctly""" + openshift_image_tag = self.template_var(hostvars, host, 'openshift_image_tag') + if not openshift_image_tag or openshift_image_tag == 'latest': + return None + regex_to_match = IMAGE_TAG_REGEX[openshift_deployment_type]['re'] + res = re.match(regex_to_match, str(openshift_image_tag)) + if res is None: + msg = IMAGE_TAG_REGEX[openshift_deployment_type]['error_msg'] + msg = msg.format(str(openshift_image_tag)) + raise errors.AnsibleModuleError(msg) + + def no_origin_image_version(self, hostvars, host, openshift_deployment_type): + """Ensure we can determine what image version to use with origin + fail when: + - openshift_is_containerized + - openshift_deployment_type == 'origin' + - openshift_release is not defined + - openshift_image_tag is not defined""" + if not openshift_deployment_type == 'origin': + return None + oic = self.template_var(hostvars, host, 'openshift_is_containerized') + if not to_bool(oic): + return None + orelease = self.template_var(hostvars, host, 'openshift_release') + oitag = self.template_var(hostvars, host, 'openshift_image_tag') + if not orelease and not oitag: + raise errors.AnsibleModuleError(CONTAINERIZED_NO_TAG_ERROR_MSG) + + def network_plugin_check(self, hostvars, host): + """Ensure only one type of network plugin is enabled""" + res = [] + # Loop through each possible network plugin boolean, determine the + # actual boolean value, and append results into a list. + for plugin, default_val in NET_PLUGIN_LIST: + res_temp = self.template_var(hostvars, host, plugin) + if res_temp is None: + res_temp = default_val + res.append(to_bool(res_temp)) + + if sum(res) != 1: + plugin_str = list(zip([x[0] for x in NET_PLUGIN_LIST], res)) + + msg = "Host Checked: {} Only one of must be true. Found: {}".format(host, plugin_str) + raise errors.AnsibleModuleError(msg) + + def check_hostname_vars(self, hostvars, host): + """Checks to ensure openshift_hostname + and openshift_public_hostname + conform to the proper length of 63 characters or less""" + for varname in ('openshift_public_hostname', 'openshift_hostname'): + var_value = self.template_var(hostvars, host, varname) + if var_value and len(var_value) > 63: + msg = '{} must be 63 characters or less'.format(varname) + raise errors.AnsibleModuleError(msg) + + def run_checks(self, hostvars, host): + """Execute the hostvars validations against host""" + distro = self.template_var(hostvars, host, 'ansible_distribution') + odt = self.check_openshift_deployment_type(hostvars, host) + self.check_python_version(hostvars, host, distro) + self.check_image_tag_format(hostvars, host, odt) + self.no_origin_image_version(hostvars, host, odt) + self.network_plugin_check(hostvars, host) + self.check_hostname_vars(hostvars, host) + + def run(self, tmp=None, task_vars=None): + result = super(ActionModule, self).run(tmp, task_vars) + + # self.task_vars holds all in-scope variables. + # Ignore settting self.task_vars outside of init. + # pylint: disable=W0201 + self.task_vars = task_vars or {} + + # self._task.args holds task parameters. + # check_hosts is a parameter to this plugin, and should provide + # a list of hosts. + check_hosts = self._task.args.get('check_hosts') + if not check_hosts: + msg = "check_hosts is required" + raise errors.AnsibleModuleError(msg) + + # We need to access each host's variables + hostvars = self.task_vars.get('hostvars') + if not hostvars: + msg = hostvars + raise errors.AnsibleModuleError(msg) + + # We loop through each host in the provided list check_hosts + for host in check_hosts: + self.run_checks(hostvars, host) + + result["changed"] = False + result["failed"] = False + result["msg"] = "Sanity Checks passed" + + return result |