kubespray/roles/kubernetes/master/tasks/main.yml

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---
- include: pre-upgrade.yml
- name: Copy kubectl from hyperkube container
command: "/usr/bin/docker run --rm -v {{ bin_dir }}:/systembindir {{ hyperkube_image_repo }}:{{ hyperkube_image_tag }} /bin/cp /hyperkube /systembindir/kubectl"
register: kube_task_result
until: kube_task_result.rc == 0
retries: 4
delay: "{{ retry_stagger | random + 3 }}"
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changed_when: false
- name: Gather kubectl bash completion
command: "{{ bin_dir }}/kubectl completion bash"
no_log: true
register: kubectl_bash_completion
when: ansible_os_family in ["Debian","RedHat"]
- name: Write kubectl bash completion
copy:
content: "{{ kubectl_bash_completion.stdout }}"
dest: /etc/bash_completion.d/kubectl.sh
owner: root
group: root
mode: 0755
when: ansible_os_family in ["Debian","RedHat"] and kubectl_bash_completion.changed
- name: Write kube-apiserver manifest
template:
src: manifests/kube-apiserver.manifest.j2
dest: "{{ kube_manifest_dir }}/kube-apiserver.manifest"
notify: Master | wait for the apiserver to be running
- meta: flush_handlers
# Create kube-system namespace
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- name: copy 'kube-system' namespace manifest
copy: src=namespace.yml dest=/etc/kubernetes/kube-system-ns.yml
run_once: yes
when: inventory_hostname == groups['kube-master'][0]
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- name: Check if kube-system exists
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command: "{{ bin_dir }}/kubectl get ns kube-system"
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register: 'kubesystem'
changed_when: False
failed_when: False
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run_once: yes
- name: Create 'kube-system' namespace
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command: "{{ bin_dir }}/kubectl create -f /etc/kubernetes/kube-system-ns.yml"
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changed_when: False
when: kubesystem|failed and inventory_hostname == groups['kube-master'][0]
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# Write other manifests
- name: Write kube-controller-manager manifest
template:
src: manifests/kube-controller-manager.manifest.j2
dest: "{{ kube_manifest_dir }}/kube-controller-manager.manifest"
notify: Master | wait for kube-controller-manager
- name: Write kube-scheduler manifest
template:
src: manifests/kube-scheduler.manifest.j2
dest: "{{ kube_manifest_dir }}/kube-scheduler.manifest"
notify: Master | wait for kube-scheduler