317 lines
11 KiB
YAML
317 lines
11 KiB
YAML
---
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- name: Stop if either kube_control_plane or kube-node group is empty
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assert:
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that: "groups.get('{{ item }}')"
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with_items:
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- kube_control_plane
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- kube-node
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run_once: true
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when: not ignore_assert_errors
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- name: Stop if etcd group is empty in external etcd mode
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assert:
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that: groups.get('etcd')
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fail_msg: "Group 'etcd' cannot be empty in external etcd mode"
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run_once: true
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when:
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- not ignore_assert_errors
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- not etcd_kubeadm_enabled
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- name: Stop if non systemd OS type
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assert:
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that: ansible_service_mgr == "systemd"
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when: not ignore_assert_errors
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- name: Stop if unknown OS
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assert:
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that: ansible_os_family in ['RedHat', 'CentOS', 'Fedora', 'Ubuntu', 'Debian', 'Flatcar Container Linux by Kinvolk', 'Suse', 'ClearLinux', 'OracleLinux']
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msg: "{{ ansible_os_family }} is not a known OS"
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when: not ignore_assert_errors
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- name: Stop if unknown network plugin
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assert:
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that: kube_network_plugin in ['calico', 'canal', 'flannel', 'weave', 'cloud', 'cilium', 'cni', 'ovn4nfv','kube-ovn', 'kube-router', 'macvlan']
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msg: "{{ kube_network_plugin }} is not supported"
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when:
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- kube_network_plugin is defined
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- not ignore_assert_errors
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- name: Stop if incompatible network plugin and cloudprovider
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assert:
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that:
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- calico_ipip_mode == 'Never'
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- calico_vxlan_mode in ['Always', 'CrossSubnet']
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msg: "When using cloud_provider azure and network_plugin calico calico_ipip_mode must be 'Never' and calico_vxlan_mode 'Always' or 'CrossSubnet'"
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when:
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- cloud_provider is defined and cloud_provider == 'azure'
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- kube_network_plugin == 'calico'
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- not ignore_assert_errors
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- name: Stop if unsupported version of Kubernetes
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assert:
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that: kube_version is version(kube_version_min_required, '>=')
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msg: "The current release of Kubespray only support newer version of Kubernetes than {{ kube_version_min_required }} - You are trying to apply {{ kube_version }}"
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when: not ignore_assert_errors
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# simplify this items-list when https://github.com/ansible/ansible/issues/15753 is resolved
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- name: "Stop if known booleans are set as strings (Use JSON format on CLI: -e \"{'key': true }\")"
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assert:
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that: item.value|type_debug == 'bool'
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msg: "{{ item.value }} isn't a bool"
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run_once: yes
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with_items:
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- { name: download_run_once, value: "{{ download_run_once }}" }
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- { name: deploy_netchecker, value: "{{ deploy_netchecker }}" }
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- { name: download_always_pull, value: "{{ download_always_pull }}" }
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- { name: helm_enabled, value: "{{ helm_enabled }}" }
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- { name: openstack_lbaas_enabled, value: "{{ openstack_lbaas_enabled }}" }
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when: not ignore_assert_errors
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- name: Stop if even number of etcd hosts
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assert:
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that: groups.etcd|length is not divisibleby 2
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when:
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- not ignore_assert_errors
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- inventory_hostname in groups.get('etcd',[])
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- name: Stop if memory is too small for masters
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assert:
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that: ansible_memtotal_mb >= minimal_master_memory_mb
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when:
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- not ignore_assert_errors
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- inventory_hostname in groups['kube_control_plane']
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- name: Stop if memory is too small for nodes
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assert:
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that: ansible_memtotal_mb >= minimal_node_memory_mb
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when:
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- not ignore_assert_errors
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- inventory_hostname in groups['kube-node']
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# This assertion will fail on the safe side: One can indeed schedule more pods
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# on a node than the CIDR-range has space for when additional pods use the host
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# network namespace. It is impossible to ascertain the number of such pods at
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# provisioning time, so to establish a guarantee, we factor these out.
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# NOTICE: the check blatantly ignores the inet6-case
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- name: Guarantee that enough network address space is available for all pods
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assert:
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that: "{{ (kubelet_max_pods | default(110)) | int <= (2 ** (32 - kube_network_node_prefix | int)) - 2 }}"
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msg: "Do not schedule more pods on a node than inet addresses are available."
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when:
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- not ignore_assert_errors
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- inventory_hostname in groups['k8s-cluster']
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- kube_network_node_prefix is defined
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- kube_network_plugin != 'calico'
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- name: Stop if ip var does not match local ips
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assert:
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that: ip in ansible_all_ipv4_addresses
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msg: "'{{ ansible_all_ipv4_addresses }}' do not contain '{{ ip }}'"
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when:
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- not ignore_assert_errors
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- ip is defined
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- name: Stop if access_ip is not pingable
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command: ping -c1 {{ access_ip }}
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when:
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- access_ip is defined
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- not ignore_assert_errors
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- ping_access_ip
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- name: Stop if RBAC is not enabled when dashboard is enabled
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assert:
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that: rbac_enabled
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when:
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- dashboard_enabled
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- not ignore_assert_errors
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- name: Stop if RBAC is not enabled when OCI cloud controller is enabled
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assert:
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that: rbac_enabled
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when:
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- cloud_provider is defined and cloud_provider == "oci"
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- not ignore_assert_errors
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- name: Stop if RBAC and anonymous-auth are not enabled when insecure port is disabled
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assert:
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that: rbac_enabled and kube_api_anonymous_auth
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when:
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- kube_apiserver_insecure_port == 0 and inventory_hostname in groups['kube_control_plane']
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- not ignore_assert_errors
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- name: Stop if kernel version is too low
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assert:
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that: ansible_kernel.split('-')[0] is version('4.9.17', '>=')
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when:
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- kube_network_plugin == 'cilium' or cilium_deploy_additionally | default(false) | bool
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- not ignore_assert_errors
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- name: Stop if bad hostname
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assert:
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that: inventory_hostname is match("[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$")
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msg: "Hostname must consist of lower case alphanumeric characters, '.' or '-', and must start and end with an alphanumeric character"
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when: not ignore_assert_errors
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- name: check cloud_provider value
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assert:
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that: cloud_provider in ['generic', 'gce', 'aws', 'azure', 'openstack', 'vsphere', 'oci', 'external']
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msg: "If set the 'cloud_provider' var must be set either to 'generic', 'gce', 'aws', 'azure', 'openstack', 'vsphere', or external"
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when:
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- cloud_provider is defined
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- not ignore_assert_errors
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tags:
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- cloud-provider
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- facts
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- name: Ensure minimum calico version
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assert:
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that: calico_version is version(calico_min_version_required, '>=')
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msg: "calico_version is too low. Minimum version {{ calico_min_version_required }}"
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run_once: yes
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when:
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- kube_network_plugin == 'calico'
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- name: Get current calico cluster version
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shell: "set -o pipefail && {{ bin_dir }}/calicoctl.sh version | grep 'Cluster Version:' | awk '{ print $3}'"
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args:
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executable: /bin/bash
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register: calico_version_on_server
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async: 10
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poll: 3
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run_once: yes
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changed_when: false
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failed_when: false
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when:
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- kube_network_plugin == 'calico'
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- name: Check that current calico version is enough for upgrade
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assert:
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that:
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- calico_version_on_server.stdout is version( 'v3.0.0', '>=')
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msg: "Your version of calico is not fresh enough for upgrade. Minimum version is v3.0.0"
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when:
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- kube_network_plugin == 'calico'
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- 'calico_version_on_server.stdout is defined'
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- calico_version_on_server.stdout
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- inventory_hostname == groups['kube_control_plane'][0]
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run_once: yes
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- name: "Check that cluster_id is set if calico_rr enabled"
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assert:
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that:
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- cluster_id is defined
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msg: "A unique cluster_id is required if using calico_rr"
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when:
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- kube_network_plugin == 'calico'
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- peer_with_calico_rr
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- inventory_hostname == groups['kube_control_plane'][0]
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run_once: yes
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- name: "Check that calico_rr nodes are in k8s-cluster group"
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assert:
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that:
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- '"k8s-cluster" in group_names'
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msg: "calico-rr must be a child group of k8s-cluster group"
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when:
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- kube_network_plugin == 'calico'
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- '"calico-rr" in group_names'
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- name: "Check that kube_service_addresses is a network range"
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assert:
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that:
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- kube_service_addresses | ipaddr('net')
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msg: "kube_service_addresses = '{{ kube_service_addresses }}' is not a valid network range"
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run_once: yes
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- name: "Check that kube_pods_subnet is a network range"
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assert:
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that:
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- kube_pods_subnet | ipaddr('net')
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msg: "kube_pods_subnet = '{{ kube_pods_subnet }}' is not a valid network range"
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run_once: yes
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- name: "Check that kube_pods_subnet does not collide with kube_service_addresses"
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assert:
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that:
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- kube_pods_subnet | ipaddr(kube_service_addresses) | string == 'None'
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msg: "kube_pods_subnet cannot be the same network segment as kube_service_addresses"
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run_once: yes
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- name: Stop if unknown dns mode
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assert:
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that: dns_mode in ['coredns', 'coredns_dual', 'manual', 'none']
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msg: "dns_mode can only be 'coredns', 'coredns_dual', 'manual' or 'none'"
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when: dns_mode is defined
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run_once: true
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- name: Stop if unknown kube proxy mode
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assert:
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that: kube_proxy_mode in ['iptables', 'ipvs']
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msg: "kube_proxy_mode can only be 'iptables' or 'ipvs'"
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when: kube_proxy_mode is defined
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run_once: true
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- name: Stop if unknown cert_management
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assert:
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that: cert_management|d('script') in ['script', 'none']
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msg: "cert_management can only be 'script' or 'none'"
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run_once: true
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- name: Stop if unknown resolvconf_mode
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assert:
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that: resolvconf_mode in ['docker_dns', 'host_resolvconf', 'none']
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msg: "resolvconf_mode can only be 'docker_dns', 'host_resolvconf' or 'none'"
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when: resolvconf_mode is defined
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run_once: true
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- name: Stop if etcd deployment type is not host or docker
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assert:
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that: etcd_deployment_type in ['host', 'docker']
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msg: "The etcd deployment type, 'etcd_deployment_type', must be host or docker"
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when:
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- inventory_hostname in groups.get('etcd',[])
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- not etcd_kubeadm_enabled
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- name: Stop if etcd deployment type is not host when container_manager != docker
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assert:
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that: etcd_deployment_type == 'host'
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msg: "The etcd deployment type, 'etcd_deployment_type', must be host when container_manager is not docker"
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when:
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- inventory_hostname in groups.get('etcd',[])
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- not etcd_kubeadm_enabled
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- container_manager != 'docker'
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- name: Stop if download_localhost is enabled but download_run_once is not
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assert:
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that: download_run_once
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msg: "download_localhost requires enable download_run_once"
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when: download_localhost
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- name: Stop if kata_containers_enabled is enabled when container_manager is docker
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assert:
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that: container_manager != 'docker'
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msg: "kata_containers_enabled support only for containerd and crio-o. See https://github.com/kata-containers/documentation/blob/1.11.4/how-to/run-kata-with-k8s.md#install-a-cri-implementation for details"
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when: kata_containers_enabled
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- name: Stop if download_localhost is enabled for Flatcar Container Linux
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assert:
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that: ansible_os_family not in ["Flatcar Container Linux by Kinvolk"]
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msg: "download_run_once not supported for Flatcar Container Linux"
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when: download_run_once or download_force_cache
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- name: Ensure minimum containerd version
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assert:
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that: containerd_version is version(containerd_min_version_required, '>=')
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msg: "containerd_version is too low. Minimum version {{ containerd_min_version_required }}"
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run_once: yes
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when:
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- containerd_version != 'latest'
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- container_manager == 'containerd'
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- name: Stop if using deprecated containerd_config variable
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assert:
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that: containerd_config is not defined
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msg: "Variable containerd_config is now deprecated. See https://github.com/kubernetes-sigs/kubespray/blob/master/inventory/sample/group_vars/all/containerd.yml for details."
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when:
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- containerd_config is defined
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- not ignore_assert_errors
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