c12s-kubespray/extra_playbooks/upgrade-only-k8s.yml

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### NOTE: This playbook cannot be used to deploy any new nodes to the cluster.
### Additional information:
### * Will not upgrade etcd
### * Will not upgrade network plugins
### * Will not upgrade Docker
### * Will not pre-download containers or kubeadm
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### * Currently does not support Vault deployment.
###
### In most cases, you probably want to use upgrade-cluster.yml playbook and
### not this one.
- hosts: localhost
gather_facts: False
roles:
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- { role: kubespray-defaults}
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- { role: bastion-ssh-config, tags: ["localhost", "bastion"]}
- hosts: k8s-cluster:etcd:calico-rr
any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
gather_facts: false
vars:
# Need to disable pipelining for bootstrap-os as some systems have requiretty in sudoers set, which makes pipelining
# fail. bootstrap-os fixes this on these systems, so in later plays it can be enabled.
ansible_ssh_pipelining: false
roles:
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- { role: kubespray-defaults}
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- { role: bootstrap-os, tags: bootstrap-os}
- hosts: k8s-cluster:etcd:calico-rr
any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
vars:
ansible_ssh_pipelining: true
gather_facts: true
- hosts: k8s-cluster:etcd:calico-rr
any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
roles:
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- { role: kubespray-defaults}
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- { role: kubernetes/preinstall, tags: preinstall }
#Handle upgrades to master components first to maintain backwards compat.
- hosts: kube-master
any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
serial: 1
roles:
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- { role: kubespray-defaults}
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- { role: upgrade/pre-upgrade, tags: pre-upgrade }
- { role: kubernetes/node, tags: node }
- { role: kubernetes/master, tags: master, upgrade_cluster_setup: true }
- { role: kubernetes/client, tags: client }
- { role: kubernetes-apps/cluster_roles, tags: cluster-roles }
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- { role: upgrade/post-upgrade, tags: post-upgrade }
#Finally handle worker upgrades, based on given batch size
- hosts: kube-node:!kube-master
any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
serial: "{{ serial | default('20%') }}"
roles:
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- { role: kubespray-defaults}
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- { role: upgrade/pre-upgrade, tags: pre-upgrade }
- { role: kubernetes/node, tags: node }
- { role: upgrade/post-upgrade, tags: post-upgrade }
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- { role: kubespray-defaults}