251 lines
9.2 KiB
YAML
251 lines
9.2 KiB
YAML
---
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- name: Stop if either kube-master, kube-node or etcd 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-master
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- kube-node
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- etcd
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run_once: true
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ignore_errors: "{{ ignore_assert_errors }}"
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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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ignore_errors: "{{ 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', 'CoreOS', 'Coreos', 'Container Linux by CoreOS', 'Flatcar', '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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ignore_errors: "{{ 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', 'contiv', 'kube-ovn', 'kube-router', 'macvlan']
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msg: "{{ kube_network_plugin }} is not supported"
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when: kube_network_plugin is defined
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ignore_errors: "{{ 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: kube_network_plugin != 'calico'
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msg: "Azure and Calico are not compatible. See https://github.com/projectcalico/calicoctl/issues/949 for details."
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when: cloud_provider is defined and cloud_provider == 'azure'
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ignore_errors: "{{ 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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ignore_errors: "{{ 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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ignore_errors: "{{ 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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ignore_errors: "{{ ignore_assert_errors }}"
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when: inventory_hostname in groups['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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ignore_errors: "{{ ignore_assert_errors }}"
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when: inventory_hostname in groups['kube-master']
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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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ignore_errors: "{{ ignore_assert_errors }}"
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when: 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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ignore_errors: "{{ ignore_assert_errors }}"
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when:
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- inventory_hostname in groups['k8s-cluster']
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- kube_network_node_prefix is defined
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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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ignore_errors: "{{ ignore_assert_errors }}"
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when: 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: access_ip is defined
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ignore_errors: "{{ ignore_assert_errors }}"
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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: dashboard_enabled
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ignore_errors: "{{ 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: cloud_provider is defined and cloud_provider == "oci"
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ignore_errors: "{{ 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: kube_apiserver_insecure_port == 0 and inventory_hostname in groups['kube-master']
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ignore_errors: "{{ 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('4.8', '>=')
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when: kube_network_plugin == 'cilium'
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ignore_errors: "{{ 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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ignore_errors: "{{ 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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ignore_errors: "{{ 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('v3.0.0', '>=')
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msg: "calico_version is too low. Minimum version v3.0.0"
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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 version of calico cluster version"
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shell: "{{ bin_dir }}/calicoctl.sh version | grep 'Cluster Version:' | awk '{ print $3}'"
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register: calico_version_on_server
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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 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('v2.6.5', '>=')
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msg: "Your version of calico is not fresh enough for upgrade. Minimum version v2.6.5"
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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-master'][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-master'][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 vault is chose
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assert:
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that: cert_management != 'vault'
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msg: "Support for vault have been removed, please use 'script' or 'none'"
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when: cert_management 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 kubeadm etcd mode is enabled but experimental control plane is not
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assert:
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that: kubeadm_control_plane
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msg: "kubeadm etcd mode requires experimental control plane"
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when: etcd_kubeadm_enabled
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