5f12b7aedf
Both kubedns and dnsmasq modes are long not maintained. We should run dns_late steps at the end because sshd makes DNS lookups during Ansible run and has 2s timeouts for each failed lookup trying to connect to coredns before it is ready.
49 lines
2.1 KiB
YAML
49 lines
2.1 KiB
YAML
---
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- name: Rotate Tokens | Get default token name
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shell: "{{ bin_dir }}/kubectl --kubeconfig /etc/kubernetes/admin.conf get secrets -o custom-columns=name:{.metadata.name} --no-headers | grep -m1 default-token"
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register: default_token
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changed_when: false
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until: default_token.rc == 0
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delay: 1
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retries: 5
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- name: Rotate Tokens | Get default token data
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command: "{{ bin_dir }}/kubectl --kubeconfig /etc/kubernetes/admin.conf get secrets {{ default_token.stdout }} -ojson"
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register: default_token_data
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changed_when: false
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- name: Rotate Tokens | Test if default certificate is expired
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uri:
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url: https://{{ kube_apiserver_ip }}/api/v1/nodes
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method: GET
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return_content: no
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validate_certs: no
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headers:
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Authorization: "Bearer {{ (default_token_data.stdout|from_json)['data']['token']|b64decode }}"
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register: check_secret
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failed_when: false
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- name: Rotate Tokens | Determine if certificate is expired
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set_fact:
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needs_rotation: '{{ check_secret.status not in [200, 403] }}'
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# FIXME(mattymo): Exclude built in secrets that were automatically rotated,
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# instead of filtering manually
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- name: Rotate Tokens | Get all serviceaccount tokens to expire
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shell: >-
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{{ bin_dir }}/kubectl --kubeconfig /etc/kubernetes/admin.conf get secrets --all-namespaces
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-o 'jsonpath={range .items[*]}{"\n"}{.metadata.namespace}{" "}{.metadata.name}{" "}{.type}{end}'
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| grep kubernetes.io/service-account-token
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| egrep 'default-token|kube-proxy|kube-dns|netchecker|weave|calico|canal|flannel|dashboard|cluster-proportional-autoscaler|tiller|local-volume-provisioner'
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register: tokens_to_delete
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when: needs_rotation
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- name: Rotate Tokens | Delete expired tokens
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command: "{{ bin_dir }}/kubectl --kubeconfig /etc/kubernetes/admin.conf delete secrets -n {{ item.split(' ')[0] }} {{ item.split(' ')[1] }}"
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with_items: "{{ tokens_to_delete.stdout_lines }}"
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when: needs_rotation
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- name: Rotate Tokens | Delete pods in system namespace
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command: "{{ bin_dir }}/kubectl --kubeconfig /etc/kubernetes/admin.conf delete pods -n kube-system --all --grace-period=0 --force"
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when: needs_rotation
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