c12s-kubespray/roles/kubernetes/secrets/tasks/gen_certs_script.yml

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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]}}"
tags: [kubelet, k8s-secrets, kube-controller-manager, kube-apiserver, bootstrap-os, apps, network, master, node]
when: gen_certs|default(false)
- 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]}}"
tags: [k8s-secrets, bootstrap-os]
when: gen_certs|default(false)
- name: Gen_certs | write openssl config
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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)
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- name: Gen_certs | copy certs generation script
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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
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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 hostvars[m].sync_certs|default(true) %}
{{ m }}
{% endif %}
{% endfor %}"
- HOSTS: "{% for h in groups['k8s-cluster'] %}
{% if hostvars[h].sync_certs|default(true) %}
{{ h }}
{% endif %}
{% endfor %}"
run_once: yes
delegate_to: "{{groups['kube-master'][0]}}"
when: gen_certs|default(false)
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notify: set secret_changed
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- set_fact:
all_master_certs: "['ca-key.pem',
{% for node in groups['kube-master'] %}
'admin-{{ node }}.pem',
'admin-{{ node }}-key.pem',
'apiserver.pem',
'apiserver-key.pem',
{% endfor %}]"
my_master_certs: ['ca-key.pem',
'admin-{{ inventory_hostname }}.pem',
'admin-{{ inventory_hostname }}-key.pem',
'apiserver.pem',
'apiserver-key.pem'
]
all_node_certs: "['ca.pem',
{% for node in groups['k8s-cluster'] %}
'node-{{ node }}.pem',
'node-{{ node }}-key.pem',
{% endfor %}]"
my_node_certs: ['ca.pem', 'node-{{ inventory_hostname }}.pem', 'node-{{ inventory_hostname }}-key.pem']
tags: facts
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- 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
register: master_cert_data
check_mode: no
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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
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]
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#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
shell: mktemp /tmp/certsXXXXX.tar.gz
register: cert_tempfile
- 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 }}"
changed_when: false
check_mode: no
when: inventory_hostname in groups['kube-master'] and sync_certs|default(false) and
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inventory_hostname != groups['kube-master'][0]
notify: set secret_changed
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- name: Gen_certs | Cleanup tempfile
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
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 }}
owner=kube
recurse=yes
- name: Gen_certs | set permissions on keys
shell: chmod 0600 {{ kube_cert_dir}}/*key.pem
when: inventory_hostname in groups['kube-master']
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changed_when: false
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- name: Gen_certs | target ca-certificates path
set_fact:
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ca_cert_path: |-
{% if ansible_os_family == "Debian" -%}
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/usr/local/share/ca-certificates/kube-ca.crt
{%- elif ansible_os_family == "RedHat" -%}
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/etc/pki/ca-trust/source/anchors/kube-ca.crt
{%- elif ansible_os_family in ["CoreOS", "Container Linux by CoreOS"] -%}
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/etc/ssl/certs/kube-ca.pem
{%- endif %}
tags: facts
- name: Gen_certs | add CA to trusted CA dir
copy:
src: "{{ kube_cert_dir }}/ca.pem"
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dest: "{{ ca_cert_path }}"
remote_src: true
register: kube_ca_cert
- name: Gen_certs | update ca-certificates (Debian/Ubuntu/Container Linux by CoreOS)
command: update-ca-certificates
when: kube_ca_cert.changed and ansible_os_family in ["Debian", "Container Linux by CoreOS"]
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- name: Gen_certs | update ca-certificates (RedHat)
command: update-ca-trust extract
when: kube_ca_cert.changed and ansible_os_family == "RedHat"