blob: 9bbe9ecc7931ba88ef19a8409b8a96e6c1bb0dd6 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
---
- name: check if kubeconfig kubelet.conf already exists
stat:
path: /etc/kubernetes/kubelet.conf
register: kubeconfig_kubelet_stats
- name: generate kubeadm.config
template:
src: kubeadm.config.j2
dest: /etc/kubernetes/kubeadm.config
register: kubeadm_config
### cluster not yet initialized
- name: create new cluster
when: not kubeconfig_kubelet_stats.stat.exists
block:
#### kubeadm wants token to come from --config if --config is used
#### i think this is stupid -> TODO: send bug report
# - name: generate bootstrap token for new cluster
# command: kubeadm token generate
# changed_when: False
# check_mode: no
# register: kubeadm_token_generate
- name: initialize kubernetes master and store log
block:
- name: initialize kubernetes master
command: "kubeadm init --config /etc/kubernetes/kubeadm.config --node-name {{ inventory_hostname }}{% if kubernetes_cri_socket is defined %} --cri-socket {{ kubernetes_cri_socket }}{% endif %}{% if kubernetes_network_plugin == 'kube-router' %} --skip-phases addon/kube-proxy{% endif %} --skip-token-print"
# command: "kubeadm init --config /etc/kubernetes/kubeadm.config{% if kubernetes_cri_socket is defined %} --cri-socket {{ kubernetes_cri_socket }}{% endif %}{% if kubernetes_network_plugin == 'kube-router' %} --skip-phases addon/kube-proxy{% endif %} --token '{{ kubeadm_token_generate.stdout }}' --token-ttl 42m --skip-token-print"
args:
creates: /etc/kubernetes/pki/ca.crt
register: kubeadm_init
always:
- name: dump output of kubeadm init to log file
when: kubeadm_init.changed
copy:
content: "{{ kubeadm_init.stdout }}\n"
dest: /etc/kubernetes/kubeadm-init.log
- name: create bootstrap token for existing cluster
command: kubeadm token create --ttl 42m
check_mode: no
register: kubeadm_token_generate
### cluster is already initialized but config has changed
- name: upgrade cluster config
when: kubeconfig_kubelet_stats.stat.exists and kubeadm_config is changed
block:
- name: fail for cluster upgrades
fail:
msg: "upgrading cluster config is currently not supported!"
### cluster is already initialized
- name: prepare cluster for new nodes
when: kubeconfig_kubelet_stats.stat.exists and kubeadm_config is not changed
block:
- name: fetch list of current nodes
command: kubectl --kubeconfig /etc/kubernetes/admin.conf get nodes -o name
changed_when: False
check_mode: no
register: kubectl_node_list
- name: save list of current nodes
set_fact:
kubernetes_current_nodes: "{{ kubectl_node_list.stdout_lines | map('replace', 'node/', '') | list }}"
- name: create bootstrap token for existing cluster
when: "groups['_kubernetes_nodes_'] | difference(kubernetes_current_nodes) | length > 0"
command: kubeadm token create --ttl 42m
check_mode: no
register: kubeadm_token_create
## calculate certificate digest
- name: install openssl
apt:
name: openssl
state: present
- name: get ca certificate digest
shell: "set -o pipefail && openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'"
args:
executable: /bin/bash
check_mode: no
register: kube_ca_openssl
changed_when: False
- name: set variables needed by kubernetes/nodes to join the cluster
set_fact:
kube_bootstrap_token: "{% if kubeadm_token_generate.stdout is defined %}{{ kubeadm_token_generate.stdout }}{% elif kubeadm_token_create.stdout is defined %}{{ kubeadm_token_create.stdout }}{% endif %}"
kube_bootstrap_ca_cert_hash: "sha256:{{ kube_ca_openssl.stdout }}"
delegate_to: "{{ item }}"
delegate_facts: True
loop: "{{ groups['_kubernetes_nodes_'] }}"
## Network Plugin
# - name: install network plugin
# include_tasks: "net_{{ kubernetes_network_plugin }}.yml"
|
