189 lines
6.4 KiB
YAML
189 lines
6.4 KiB
YAML
---
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- name: kubeadm | Check if old apiserver cert exists on host
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stat:
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path: "{{ kube_cert_dir }}/apiserver.pem"
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register: old_apiserver_cert
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delegate_to: "{{groups['kube-master']|first}}"
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run_once: true
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- name: kubeadm | Migrate old certs if necessary
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import_tasks: kubeadm-migrate-certs.yml
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when: old_apiserver_cert.stat.exists
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- name: kubeadm | Check apiserver key
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stat:
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path: "{{ kube_cert_dir }}/apiserver.key"
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register: apiserver_key_before
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delegate_to: "{{groups['kube-master']|first}}"
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run_once: true
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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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register: kubeadm_already_run
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- name: kubeadm | Delete old admin.conf
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file:
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path: "{{ kube_config_dir }}/admin.conf"
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state: absent
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when:
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- not kubeadm_already_run.stat.exists
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- name: kubeadm | Delete old static pods
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file:
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path: "{{ kube_config_dir }}/manifests/{{item}}.manifest"
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state: absent
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with_items: ["kube-apiserver", "kube-controller-manager", "kube-scheduler", "kube-proxy"]
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when:
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- old_apiserver_cert.stat.exists
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- name: kubeadm | Forcefully delete old static pods
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shell: "docker ps -f name=k8s_{{item}} -q | xargs --no-run-if-empty docker rm -f"
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with_items: ["kube-apiserver", "kube-controller-manager", "kube-scheduler"]
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when:
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- old_apiserver_cert.stat.exists
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- name: kubeadm | aggregate all SANs
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set_fact:
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apiserver_sans: >-
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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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{{ ' '.join(groups['kube-master']) }}
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{%- if loadbalancer_apiserver is defined %}
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{{ apiserver_loadbalancer_domain_name }}
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{% endif %}
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{% for host in groups['kube-master'] -%}
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{%- if hostvars[host]['access_ip'] is defined %}
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{{ hostvars[host]['access_ip'] }}
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{% endif %}
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{{ hostvars[host]['ip'] | default(fallback_ips[host]) }}
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{%- endfor %}
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{% if supplementary_addresses_in_ssl_keys is defined -%}
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{% for addr in supplementary_addresses_in_ssl_keys %}
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{{ addr }}
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{% endfor %}
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{%- endif %}
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tags: facts
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- name: kubeadm | Copy etcd cert dir under k8s cert dir
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command: "cp -TR {{ etcd_cert_dir }} {{ kube_config_dir }}/ssl/etcd"
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changed_when: false
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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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when: kubernetes_audit|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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when: kubernetes_audit|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: kubeadm | set kubeadm version
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import_tasks: kubeadm-version.yml
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- name: kubeadm | Certificate management with kubeadm
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import_tasks: kubeadm-certificate.yml
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when:
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- not upgrade_cluster_setup
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- kubeadm_already_run.stat.exists
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- name: kubeadm | Initialize first master
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command: timeout -k 600s 600s {{ bin_dir }}/kubeadm init --config={{ kube_config_dir }}/kubeadm-config.yaml --ignore-preflight-errors=all
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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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when: inventory_hostname == groups['kube-master']|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: slurp kubeadm certs
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slurp:
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src: "{{ item }}"
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with_items:
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- "{{ kube_cert_dir }}/apiserver.crt"
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- "{{ kube_cert_dir }}/apiserver.key"
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- "{{ kube_cert_dir }}/apiserver-kubelet-client.crt"
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- "{{ kube_cert_dir }}/apiserver-kubelet-client.key"
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- "{{ kube_cert_dir }}/ca.crt"
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- "{{ kube_cert_dir }}/ca.key"
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- "{{ kube_cert_dir }}/front-proxy-ca.crt"
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- "{{ kube_cert_dir }}/front-proxy-ca.key"
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- "{{ kube_cert_dir }}/front-proxy-client.crt"
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- "{{ kube_cert_dir }}/front-proxy-client.key"
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- "{{ kube_cert_dir }}/sa.key"
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- "{{ kube_cert_dir }}/sa.pub"
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register: kubeadm_certs
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delegate_to: "{{ groups['kube-master']|first }}"
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run_once: true
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- name: kubeadm | write out kubeadm certs
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copy:
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dest: "{{ item.item }}"
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content: "{{ item.content | b64decode }}"
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owner: root
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group: root
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mode: 0600
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no_log: true
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register: copy_kubeadm_certs
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with_items: "{{ kubeadm_certs.results }}"
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when: inventory_hostname != groups['kube-master']|first
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- name: kubeadm | Kubeconfig management with kubeadm
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import_tasks: kubeadm-kubeconfig.yml
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when:
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- not upgrade_cluster_setup
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- kubeadm_already_run.stat.exists
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- name: kubeadm | Init other uninitialized masters
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command: timeout -k 600s 600s {{ bin_dir }}/kubeadm init --config={{ kube_config_dir }}/kubeadm-config.yaml --ignore-preflight-errors=all
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register: kubeadm_init
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retries: 10
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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-master']|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: kubeadm | upgrage kubernetes cluster
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import_tasks: kubeadm-upgrade.yml
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when: upgrade_cluster_setup
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- name: kubeadm | Check apiserver key again
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stat:
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path: "{{ kube_cert_dir }}/apiserver.key"
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register: apiserver_key_after
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delegate_to: "{{groups['kube-master']|first}}"
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run_once: true
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- name: kubeadm | Set secret_changed if service account key was updated
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command: /bin/true
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notify: Master | set secret_changed
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when: apiserver_key_before.stat.checksum|default("") != apiserver_key_after.stat.checksum
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- name: kubeadm | cleanup old certs if necessary
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import_tasks: kubeadm-cleanup-old-certs.yml
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when:
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- old_apiserver_cert.stat.exists
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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 }} node-role.kubernetes.io/master:NoSchedule-"
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delegate_to: "{{groups['kube-master']|first}}"
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when: inventory_hostname in groups['kube-node']
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failed_when: false
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