c12s-kubespray/roles/kubernetes/kubeadm/tasks/main.yml
Chad Swenson 80379f6cab Fix kube-proxy configuration for kubeadm (#3958)
- Creates and defaults an ansible variable for every configuration option in the `kubeproxy.config.k8s.io/v1alpha1` type spec
  - Fixes vars that were orphaned by removing non-kubeadm
  - Fixes previously harcoded kubeadm values
- Introduces a `main` directory for role default files per component (requires ansible 2.6.0+)
  - Split out just `kube-proxy.yml` in this first effort
- Removes the kube-proxy server field patch task

We should continue to pull out other components from `main.yml` into their own defaults files as I did here for `defaults/main/kube-proxy.yml`. I hope for and will need others to join me in this refactoring across the project until each component config template has a matching role defaults file, with shared defaults in `kubespray-defaults` or `downloads`
2019-01-03 00:04:26 -08:00

115 lines
3.7 KiB
YAML

---
- name: Set kubeadm_discovery_address
set_fact:
kubeadm_discovery_address: >-
{%- if "127.0.0.1" in kube_apiserver_endpoint or "localhost" in kube_apiserver_endpoint -%}
{{ first_kube_master }}:{{ kube_apiserver_port }}
{%- else -%}
{{ kube_apiserver_endpoint }}
{%- endif %}
tags:
- facts
- name: Check if kubelet.conf exists
stat:
path: "{{ kube_config_dir }}/kubelet.conf"
register: kubelet_conf
- name: Calculate kubeadm CA cert hash
shell: openssl x509 -pubkey -in {{ kube_cert_dir }}/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'
register: kubeadm_ca_hash
delegate_to: "{{ groups['kube-master'][0] }}"
run_once: true
- name: Create kubeadm token for joining nodes with 24h expiration (default)
command: "{{ bin_dir }}/kubeadm token create"
run_once: true
register: temp_token
delegate_to: "{{ groups['kube-master'][0] }}"
- name: gets the kubeadm version
command: "{{ bin_dir }}/kubeadm version -o short"
register: kubeadm_output
- name: sets kubeadm api version to v1alpha1
set_fact:
kubeadmConfig_api_version: v1alpha1
when: kubeadm_output.stdout is version('v1.11.0', '<')
- name: sets kubeadm api version to v1alpha2
set_fact:
kubeadmConfig_api_version: v1alpha2
when:
- kubeadm_output.stdout is version('v1.11.0', '>=')
- kubeadm_output.stdout is version('v1.12.0', '<')
- name: sets kubeadm api version to v1alpha3
set_fact:
kubeadmConfig_api_version: v1alpha3
when:
- kubeadm_output.stdout is version('v1.12.0', '>=')
- kubeadm_output.stdout is version('v1.13.0', '<')
- name: sets kubeadm api version to v1beta1
set_fact:
kubeadmConfig_api_version: v1beta1
when: kubeadm_output.stdout is version('v1.13.0', '>=')
- name: Create kubeadm client config
template:
src: "kubeadm-client.conf.{{ kubeadmConfig_api_version }}.j2"
dest: "{{ kube_config_dir }}/kubeadm-client.conf"
backup: yes
when: not is_kube_master
vars:
kubeadm_token: "{{ temp_token.stdout }}"
- name: Join to cluster if needed
command: >-
{{ bin_dir }}/kubeadm join
--config {{ kube_config_dir}}/kubeadm-client.conf
--ignore-preflight-errors=all
register: kubeadm_join
when: not is_kube_master and (not kubelet_conf.stat.exists)
environment:
PATH: "{{ bin_dir }}:{{ ansible_env.PATH }}"
- name: Wait for kubelet bootstrap to create config
wait_for:
path: "{{ kube_config_dir }}/kubelet.conf"
delay: 1
timeout: 60
- name: Update server field in kubelet kubeconfig
lineinfile:
dest: "{{ kube_config_dir }}/kubelet.conf"
regexp: 'server:'
line: ' server: {{ kube_apiserver_endpoint }}'
backup: yes
when:
- kubeadm_config_api_fqdn is not defined
- not is_kube_master
- kubeadm_discovery_address != kube_apiserver_endpoint
notify: restart kubelet
# FIXME(mattymo): Reconcile kubelet kubeconfig filename for both deploy modes
- name: Symlink kubelet kubeconfig for calico/canal
file:
src: "{{ kube_config_dir }}/kubelet.conf"
dest: "{{ kube_config_dir }}/node-kubeconfig.yaml"
state: link
force: yes
when: kube_network_plugin in ['calico','canal']
# FIXME(jjo): need to post-remove kube-proxy until https://github.com/kubernetes/kubeadm/issues/776
# is fixed
- name: Delete kube-proxy daemonset if kube_proxy_remove set, e.g. kube_network_plugin providing proxy services
shell: "{{ bin_dir }}/kubectl --kubeconfig /etc/kubernetes/admin.conf delete daemonset -n kube-system kube-proxy"
delegate_to: "{{groups['kube-master']|first}}"
run_once: true
when:
- kube_proxy_remove
- is_kube_master
- kubeadm_discovery_address != kube_apiserver_endpoint
tags:
- kube-proxy