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---
- name: "Gen_certs | Create kubernetes config directory (on {{groups['kube-master'][0]}})"
file:
path: "{{ kube_config_dir }}"
state: directory
owner: kube
run_once: yes
delegate_to: "{{groups['kube-master'][0]}}"
when: gen_certs|default(false)
tags:
- kubelet
- k8s-secrets
- kube-controller-manager
- kube-apiserver
- apps
- network
- master
- node
- name: "Gen_certs | Create kubernetes script directory (on {{groups['kube-master'][0]}})"
file:
path: "{{ kube_script_dir }}"
state: directory
owner: kube
run_once: yes
delegate_to: "{{groups['kube-master'][0]}}"
when: gen_certs|default(false)
tags:
- k8s-secrets
- name: Gen_certs | write openssl config
template:
src: "openssl.conf.j2"
dest: "{{ kube_config_dir }}/openssl.conf"
run_once: yes
delegate_to: "{{groups['kube-master'][0]}}"
when: gen_certs|default(false)
- name: Gen_certs | copy certs generation script
copy:
src: "make-ssl.sh"
dest: "{{ kube_script_dir }}/make-ssl.sh"
mode: 0700
run_once: yes
delegate_to: "{{groups['kube-master'][0]}}"
when: gen_certs|default(false)
- name: Gen_certs | run cert generation script
command: "{{ kube_script_dir }}/make-ssl.sh -f {{ kube_config_dir }}/openssl.conf -d {{ kube_cert_dir }}"
environment:
- MASTERS: "{% for m in groups['kube-master'] %}
{% if gen_master_certs|default(false) %}
{{ m }}
{% endif %}
{% endfor %}"
- HOSTS: "{% for h in groups['k8s-cluster'] %}
{% if gen_node_certs[h]|default(true) %}
{{ h }}
{% endif %}
{% endfor %}"
run_once: yes
delegate_to: "{{groups['kube-master'][0]}}"
when: gen_certs|default(false)
notify: set secret_changed
- set_fact:
all_master_certs: "['ca-key.pem',
'apiserver.pem',
'apiserver-key.pem',
'kube-scheduler.pem',
'kube-scheduler-key.pem',
'kube-controller-manager.pem',
'kube-controller-manager-key.pem',
'front-proxy-ca.pem',
'front-proxy-ca-key.pem',
'front-proxy-client.pem',
'front-proxy-client-key.pem',
'service-account-key.pem',
{% for node in groups['kube-master'] %}
'admin-{{ node }}.pem',
'admin-{{ node }}-key.pem',
{% endfor %}]"
my_master_certs: ['ca-key.pem',
'admin-{{ inventory_hostname }}.pem',
'admin-{{ inventory_hostname }}-key.pem',
'apiserver.pem',
'apiserver-key.pem',
'front-proxy-ca.pem',
'front-proxy-ca-key.pem',
'front-proxy-client.pem',
'front-proxy-client-key.pem',
'service-account-key.pem',
'kube-scheduler.pem',
'kube-scheduler-key.pem',
'kube-controller-manager.pem',
'kube-controller-manager-key.pem']
all_node_certs: "['ca.pem',
{% for node in groups['k8s-cluster'] %}
'node-{{ node }}.pem',
'node-{{ node }}-key.pem',
'kube-proxy-{{ node }}.pem',
'kube-proxy-{{ node }}-key.pem',
{% endfor %}]"
my_node_certs: ['ca.pem',
'node-{{ inventory_hostname }}.pem',
'node-{{ inventory_hostname }}-key.pem',
'kube-proxy-{{ inventory_hostname }}.pem',
'kube-proxy-{{ inventory_hostname }}-key.pem']
tags:
- facts
- name: "Check certs | check if a cert already exists on node"
find:
paths: "{{ kube_cert_dir }}"
patterns: "*.pem"
get_checksum: true
register: kubecert_node
when: inventory_hostname != groups['kube-master'][0]
- name: "Check_certs | Set 'sync_certs' to true on masters"
set_fact:
sync_certs: true
when: inventory_hostname in groups['kube-master'] and
inventory_hostname != groups['kube-master'][0] and
(not item in kubecert_node.files | map(attribute='path') | map("basename") | list or
kubecert_node.files | selectattr("path", "equalto", "{{ kube_cert_dir }}/{{ item }}") | map(attribute="checksum")|first|default('') != kubecert_master.files | selectattr("path", "equalto", "{{ kube_cert_dir }}/{{ item }}") | map(attribute="checksum")|first|default(''))
with_items:
- "{{ my_master_certs + all_node_certs }}"
- name: "Check_certs | Set 'sync_certs' to true on nodes"
set_fact:
sync_certs: true
when: inventory_hostname in groups['kube-node'] and
inventory_hostname != groups['kube-master'][0] and
(not item in kubecert_node.files | map(attribute='path') | map("basename") | list or
kubecert_node.files | selectattr("path", "equalto", "{{ kube_cert_dir }}/{{ item }}") | map(attribute="checksum")|first|default('') != kubecert_master.files | selectattr("path", "equalto", "{{ kube_cert_dir }}/{{ item }}") | map(attribute="checksum")|first|default(''))
with_items:
- "{{ my_node_certs }}"
- name: Gen_certs | Gather master certs
shell: "tar cfz - -C {{ kube_cert_dir }} -T /dev/stdin <<< {{ my_master_certs|join(' ') }} {{ all_node_certs|join(' ') }} | base64 --wrap=0"
args:
executable: /bin/bash
no_log: true
register: master_cert_data
check_mode: no
delegate_to: "{{groups['kube-master'][0]}}"
when: inventory_hostname in groups['kube-master'] and sync_certs|default(false) and
inventory_hostname != groups['kube-master'][0]
- name: Gen_certs | Gather node certs
shell: "tar cfz - -C {{ kube_cert_dir }} -T /dev/stdin <<< {{ my_node_certs|join(' ') }} | base64 --wrap=0"
args:
executable: /bin/bash
no_log: true
register: node_cert_data
check_mode: no
delegate_to: "{{groups['kube-master'][0]}}"
when: inventory_hostname in groups['kube-node'] and
sync_certs|default(false) and
inventory_hostname != groups['kube-master'][0]
# NOTE(mattymo): Use temporary file to copy master certs because we have a ~200k
# char limit when using shell command
# FIXME(mattymo): Use tempfile module in ansible 2.3
- name: Gen_certs | Prepare tempfile for unpacking certs on masters
command: mktemp /tmp/certsXXXXX.tar.gz
register: cert_tempfile
when: inventory_hostname in groups['kube-master'] and sync_certs|default(false) and
inventory_hostname != groups['kube-master'][0]
- name: Gen_certs | Write master certs to tempfile
copy:
content: "{{master_cert_data.stdout}}"
dest: "{{cert_tempfile.stdout}}"
owner: root
mode: "0600"
when: inventory_hostname in groups['kube-master'] and sync_certs|default(false) and
inventory_hostname != groups['kube-master'][0]
- name: Gen_certs | Unpack certs on masters
shell: "base64 -d < {{ cert_tempfile.stdout }} | tar xz -C {{ kube_cert_dir }}"
no_log: true
changed_when: false
check_mode: no
when: inventory_hostname in groups['kube-master'] and sync_certs|default(false) and
inventory_hostname != groups['kube-master'][0]
notify: set secret_changed
- name: Gen_certs | Cleanup tempfile on masters
file:
path: "{{cert_tempfile.stdout}}"
state: absent
when: inventory_hostname in groups['kube-master'] and sync_certs|default(false) and
inventory_hostname != groups['kube-master'][0]
- name: Gen_certs | Copy certs on nodes
shell: "base64 -d <<< '{{node_cert_data.stdout|quote}}' | tar xz -C {{ kube_cert_dir }}"
args:
executable: /bin/bash
no_log: true
changed_when: false
check_mode: no
when: inventory_hostname in groups['kube-node'] and
sync_certs|default(false) and
inventory_hostname != groups['kube-master'][0]
notify: set secret_changed
- name: Gen_certs | check certificate permissions
file:
path: "{{ kube_cert_dir }}"
group: "{{ kube_cert_group }}"
state: directory
owner: kube
mode: "u=rwX,g-rwx,o-rwx"
recurse: yes
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