200 lines
7.6 KiB
YAML
200 lines
7.6 KiB
YAML
---
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- name: Install OIDC certificate
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copy:
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content: "{{ kube_oidc_ca_cert | b64decode }}"
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dest: "{{ kube_oidc_ca_file }}"
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owner: root
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group: root
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mode: "0644"
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when:
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- kube_oidc_auth
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- kube_oidc_ca_cert is defined
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- name: kubeadm | Check if kubeadm has already run
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stat:
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path: "/var/lib/kubelet/config.yaml"
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get_attributes: no
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get_checksum: no
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get_mime: no
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register: kubeadm_already_run
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- name: kubeadm | Backup kubeadm certs / kubeconfig
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import_tasks: kubeadm-backup.yml
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when:
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- kubeadm_already_run.stat.exists
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- name: kubeadm | aggregate all SANs
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set_fact:
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apiserver_sans: "{{ (sans_base + groups['kube_control_plane'] + sans_lb + sans_lb_ip + sans_supp + sans_access_ip + sans_ip + sans_address + sans_override + sans_hostname + sans_fqdn) | unique }}"
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vars:
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sans_base:
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- "kubernetes"
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- "kubernetes.default"
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- "kubernetes.default.svc"
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- "kubernetes.default.svc.{{ dns_domain }}"
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- "{{ kube_apiserver_ip }}"
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- "localhost"
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- "127.0.0.1"
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sans_lb: "{{ [apiserver_loadbalancer_domain_name] if apiserver_loadbalancer_domain_name is defined else [] }}"
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sans_lb_ip: "{{ [loadbalancer_apiserver.address] if loadbalancer_apiserver is defined and loadbalancer_apiserver.address is defined else [] }}"
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sans_supp: "{{ supplementary_addresses_in_ssl_keys if supplementary_addresses_in_ssl_keys is defined else [] }}"
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sans_access_ip: "{{ groups['kube_control_plane'] | map('extract', hostvars, 'access_ip') | list | select('defined') | list }}"
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sans_ip: "{{ groups['kube_control_plane'] | map('extract', hostvars, 'ip') | list | select('defined') | list }}"
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sans_address: "{{ groups['kube_control_plane'] | map('extract', hostvars, ['ansible_default_ipv4', 'address']) | list | select('defined') | list }}"
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sans_override: "{{ [kube_override_hostname] if kube_override_hostname else [] }}"
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sans_hostname: "{{ groups['kube_control_plane'] | map('extract', hostvars, ['ansible_hostname']) | list | select('defined') | list }}"
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sans_fqdn: "{{ groups['kube_control_plane'] | map('extract', hostvars, ['ansible_fqdn']) | list | select('defined') | list }}"
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tags: facts
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- name: Create audit-policy directory
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file:
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path: "{{ audit_policy_file | dirname }}"
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state: directory
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mode: 0640
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when: kubernetes_audit|default(false) or kubernetes_audit_webhook|default(false)
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- name: Write api audit policy yaml
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template:
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src: apiserver-audit-policy.yaml.j2
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dest: "{{ audit_policy_file }}"
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mode: 0640
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when: kubernetes_audit|default(false) or kubernetes_audit_webhook|default(false)
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- name: Write api audit webhook config yaml
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template:
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src: apiserver-audit-webhook-config.yaml.j2
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dest: "{{ audit_webhook_config_file }}"
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mode: 0640
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when: kubernetes_audit_webhook|default(false)
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# Nginx LB(default), If kubeadm_config_api_fqdn is defined, use other LB by kubeadm controlPlaneEndpoint.
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- name: set kubeadm_config_api_fqdn define
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set_fact:
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kubeadm_config_api_fqdn: "{{ apiserver_loadbalancer_domain_name|default('lb-apiserver.kubernetes.local') }}"
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when: loadbalancer_apiserver is defined
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- name: Set kubeadm api version to v1beta2
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set_fact:
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kubeadmConfig_api_version: v1beta2
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- name: kubeadm | Create kubeadm config
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template:
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src: "kubeadm-config.{{ kubeadmConfig_api_version }}.yaml.j2"
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dest: "{{ kube_config_dir }}/kubeadm-config.yaml"
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mode: 0640
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- name: kubeadm | Check if apiserver.crt contains all needed SANs
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shell: |
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set -o pipefail
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for IP in {{ apiserver_ips | join(' ') }}; do
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openssl x509 -noout -in "{{ kube_cert_dir }}/apiserver.crt" -checkip $IP | grep -q 'does match certificate' || echo 'NEED-RENEW'
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done
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for HOST in {{ apiserver_hosts | join(' ') }}; do
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openssl x509 -noout -in "{{ kube_cert_dir }}/apiserver.crt" -checkhost $HOST | grep -q 'does match certificate' || echo 'NEED-RENEW'
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done
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vars:
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apiserver_ips: "{{ apiserver_sans|map('ipaddr')|reject('equalto', False)|list }}"
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apiserver_hosts: "{{ apiserver_sans|difference(apiserver_ips) }}"
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args:
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executable: /bin/bash
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register: apiserver_sans_check
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changed_when: "'NEED-RENEW' in apiserver_sans_check.stdout"
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when:
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- kubeadm_already_run.stat.exists
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- name: kubeadm | regenerate apiserver cert 1/2
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file:
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state: absent
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path: "{{ kube_cert_dir }}/{{ item }}"
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with_items:
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- apiserver.crt
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- apiserver.key
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when:
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- kubeadm_already_run.stat.exists
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- apiserver_sans_check.changed
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- name: kubeadm | regenerate apiserver cert 2/2
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command: >-
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{{ bin_dir }}/kubeadm
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init phase certs apiserver
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--config={{ kube_config_dir }}/kubeadm-config.yaml
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when:
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- kubeadm_already_run.stat.exists
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- apiserver_sans_check.changed
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- name: kubeadm | Initialize first master
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command: >-
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timeout -k 300s 300s
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{{ bin_dir }}/kubeadm init
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--config={{ kube_config_dir }}/kubeadm-config.yaml
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--ignore-preflight-errors=all
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--skip-phases={{ kubeadm_init_phases_skip | join(',') }}
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--upload-certs
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register: kubeadm_init
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# Retry is because upload config sometimes fails
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retries: 3
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until: kubeadm_init is succeeded or "field is immutable" in kubeadm_init.stderr
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when: inventory_hostname == groups['kube_control_plane']|first and not kubeadm_already_run.stat.exists
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failed_when: kubeadm_init.rc != 0 and "field is immutable" not in kubeadm_init.stderr
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environment:
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PATH: "{{ bin_dir }}:{{ ansible_env.PATH }}"
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notify: Master | restart kubelet
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- name: set kubeadm certificate key
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set_fact:
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kubeadm_certificate_key: "{{ item | regex_search('--certificate-key ([^ ]+)','\\1') | first }}"
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with_items: "{{ hostvars[groups['kube_control_plane'][0]]['kubeadm_init'].stdout_lines | default([]) }}"
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when:
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- kubeadm_certificate_key is not defined
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- (item | trim) is match('.*--certificate-key.*')
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- name: Create hardcoded kubeadm token for joining nodes with 24h expiration (if defined)
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shell: >-
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{{ bin_dir }}/kubeadm --kubeconfig /etc/kubernetes/admin.conf token delete {{ kubeadm_token }} || :;
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{{ bin_dir }}/kubeadm --kubeconfig /etc/kubernetes/admin.conf token create {{ kubeadm_token }}
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changed_when: false
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when:
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- inventory_hostname == groups['kube_control_plane']|first
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- kubeadm_token is defined
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- kubeadm_refresh_token
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tags:
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- kubeadm_token
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- name: Create kubeadm token for joining nodes with 24h expiration (default)
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command: "{{ bin_dir }}/kubeadm --kubeconfig /etc/kubernetes/admin.conf token create"
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changed_when: false
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register: temp_token
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retries: 5
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delay: 5
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until: temp_token is succeeded
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delegate_to: "{{ groups['kube_control_plane'] | first }}"
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when: kubeadm_token is not defined
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tags:
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- kubeadm_token
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- name: Set kubeadm_token
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set_fact:
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kubeadm_token: "{{ temp_token.stdout }}"
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when: temp_token.stdout is defined
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tags:
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- kubeadm_token
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- name: kubeadm | Join other masters
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include_tasks: kubeadm-secondary.yml
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- name: kubeadm | upgrade kubernetes cluster
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include_tasks: kubeadm-upgrade.yml
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when:
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- upgrade_cluster_setup
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- kubeadm_already_run.stat.exists
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# FIXME(mattymo): from docs: If you don't want to taint your control-plane node, set this field to an empty slice, i.e. `taints: {}` in the YAML file.
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- name: kubeadm | Remove taint for master with node role
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command: "{{ bin_dir }}/kubectl --kubeconfig {{ kube_config_dir }}/admin.conf taint node {{ inventory_hostname }} {{ item }}"
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delegate_to: "{{ groups['kube_control_plane'] | first }}"
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with_items:
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- "node-role.kubernetes.io/master:NoSchedule-"
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- "node-role.kubernetes.io/control-plane:NoSchedule-"
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when: inventory_hostname in groups['kube_node']
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failed_when: false
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