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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
| # 后面三种方式需要给所有的节点都需要安排上glusterfs-client，否则无法使用
yum -y install openssh-server wget fuse fuse-libs openmpi libibverbs
dnf install centos-release-gluster9 -y
dnf install -y glusterfs glusterfs-api glusterfs-fuse glusterfs-rdma glusterfs-libs glusterfs-cli glusterfs-client-xlators
# 然后参考github上的配置：https://github.com/rootsongjc/kubernetes-handbook/tree/master/manifests/glusterfs
# 也可以通过Heketi集群进行自动化的glusterfs的api式管理（但此方式是基于heketi对一些全新的glusterfs节点进行自动配置（无需提前配置glusterfs））
# glusterfs卷的每个节点均需要允许kubernetes访问的iptables
iptables -N HEKETI
iptables -A HEKETI -p tcp -m state --state NEW -m tcp --dport 24007 -j ACCEPT
iptables -A HEKETI -p tcp -m state --state NEW -m tcp --dport 24008 -j ACCEPT
iptables -A HEKETI -p tcp -m state --state NEW -m tcp --dport 2222 -j ACCEPT
iptables -A HEKETI -p tcp -m state --state NEW -m multiport --dports 49152:49251 -j ACCEPT
service iptables save
# 需要提前先准备好内核模块（heketi要求）
# 检查 lsmod | egrep 'dm_snapshot|dm_mirror|dm_thin_pool'
modprobe dm_snapshot
modprobe dm_mirror
modprobe dm_thin_pool
# 对应的ansible剧本为
for i in dm_snapshot dm_mirror dm_thin_pool;do ansible nodes -m command -a 'modprobe '"$i"'';done
# 需要确认好的sshd（否则创建heketi集群时会报错）
echo "PubkeyAcceptedKeyTypes=+ssh-rsa" >> /etc/ssh/sshd_config
echo "HostKeyAlgorithms=+ssh-rsa" >> /etc/ssh/sshd_config
systemctl restart sshd
ansible nodes -m shell -a 'echo "PubkeyAcceptedKeyTypes=+ssh-rsa" >> /etc/ssh/sshd_config;echo "HostKeyAlgorithms=+ssh-rsa" >> /etc/ssh/sshd_config;systemctl restart sshd'
# 以下是配置Heketi集群，与glusterfs配置在相同节点上形成集群
wget https://github.com/heketi/heketi/releases/download/v10.4.0/heketi-v10.4.0-release-10.linux.amd64.tar.gz
tar -zxvf heketi-v10.4.0-release-10.linux.amd64.tar.gz
cp heketi/{heketi,heketi-cli} /usr/bin/
# 因为heketi不会使用root进行操作
useradd -d /var/lib/heketi -s /sbin/nologin heketi
ssh-keygen -N '' -t rsa -q -f /etc/heketi/heketi_key
chown -R heketi.heketi /etc/heketi
ssh-copy-id -i /etc/heketi/heketi_key root@node1
ssh-copy-id -i /etc/heketi/heketi_key root@node2
ssh-copy-id -i /etc/heketi/heketi_key root@node3
ssh-copy-id -i /etc/heketi/heketi_key root@node6
# heketi的相关配置
mkdir -p /etc/heketi
cat << EOF > /etc/heketi/heketi.json
{
"_port_comment": "Heketi Server Port Number",
"port": "18080",
"_enable_tls_comment": "Enable TLS in Heketi Server",
"enable_tls": false,
"_cert_file_comment": "Path to a valid certificate file",
"cert_file": "",
"_key_file_comment": "Path to a valid private key file",
"key_file": "",
"_use_auth": "Enable JWT authorization. Please enable for deployment",
"use_auth": true,
"_jwt": "Private keys for access",
"jwt": {
"_admin": "Admin has access to all APIs",
"admin": {
"_key_comment": "Set the admin key in the next line",
"key": "admin@P@88W0rd"
},
"_user": "User only has access to /volumes endpoint",
"user": {
"_key_comment": "Set the user key in the next line",
"key": "user@P@88W0rd"
}
},
"_backup_db_to_kube_secret": "Backup the heketi database to a Kubernetes secret when running in Kubernetes. Default is off.",
"backup_db_to_kube_secret": false,
"_profiling": "Enable go/pprof profiling on the /debug/pprof endpoints.",
"profiling": false,
"_glusterfs_comment": "GlusterFS Configuration",
"glusterfs": {
"_executor_comment": [
"Execute plugin. Possible choices: mock, ssh",
"mock: This setting is used for testing and development.",
" It will not send commands to any node.",
"ssh: This setting will notify Heketi to ssh to the nodes.",
" It will need the values in sshexec to be configured.",
"kubernetes: Communicate with GlusterFS containers over",
" Kubernetes exec api."
],
"executor": "ssh",
"_sshexec_comment": "SSH username and private key file information",
"sshexec": {
"keyfile": "/etc/heketi/heketi_key",
"user": "root",
"port": "22",
"fstab": "/etc/fstab"
},
"_db_comment": "Database file name",
"db": "/var/lib/heketi/heketi.db",
"_refresh_time_monitor_gluster_nodes": "Refresh time in seconds to monitor Gluster nodes",
"refresh_time_monitor_gluster_nodes": 120,
"_start_time_monitor_gluster_nodes": "Start time in seconds to monitor Gluster nodes when the heketi comes up",
"start_time_monitor_gluster_nodes": 10,
"_loglevel_comment": [
"Set log level. Choices are:",
" none, critical, error, warning, info, debug",
"Default is warning"
],
"loglevel" : "warning"
}
}
EOF
# 以systemd服务方式启动heketi
cat << EOF > /usr/lib/systemd/system/heketi.service
[Unit]
Description=Heketi Server
[Service]
Type=simple
WorkingDirectory=/var/lib/heketi
User=heketi
ExecStart=/usr/bin/heketi --config=/etc/heketi/heketi.json
Restart=on-failure
StandardOutput=syslog
StandardError=syslog
[Install]
WantedBy=multi-user.target
EOF
systemctl enable heketi --now
systemctl status heketi -l # 检查heketi服务状态
# 以配置文件创建heketi集群
cat << EOF > /etc/heketi/topology.json
{
"clusters": [
{
"nodes": [
{
"node": {
"hostnames": {
"manage": [
"node1"
],
"storage": [
"192.168.40.239"
]
},
"zone": 1
},
"devices": [
{
"name": "/dev/vdb",
"destroydata": false
},
]
},
{
"node": {
"hostnames": {
"manage": [
"node2"
],
"storage": [
"192.168.50.207"
]
},
"zone": 1
},
"devices": [
{
"name": "/dev/vdb",
"destroydata": false
},
]
},
{
"node": {
"hostnames": {
"manage": [
"node3"
],
"storage": [
"192.168.50.208"
]
},
"zone": 1
},
"devices": [
{
"name": "/dev/vdb",
"destroydata": false
},
]
},
{
"node": {
"hostnames": {
"manage": [
"node6"
],
"storage": [
"192.168.50.177"
]
},
"zone": 1
},
"devices": [
{
"name": "/dev/vdb",
"destroydata": false
},
]
}
]
}
]
}
EOF
# 在heketi-manager机器上进行配置
heketi-cli --server http://192.168.40.239:18080 --user admin --secret admin@P@88W0rd topology load --json=/etc/heketi/topology.json
# 此alias选做
echo "alias heketi-cli='heketi-cli --server http://192.168.40.239:18080 --user admin --secret admin@P@88W0rd'" >> ~/.bashrc
heketi-cli cluster list # 查看集群信息，获取集群信息，给后续的k8s配置sc使用
# kubernetes中使用
# 所有节点仍然要进行基础配置，否则无法使用该存储
yum -y install openssh-server wget fuse fuse-libs openmpi libibverbs
dnf install centos-release-gluster9 -y
dnf install -y glusterfs glusterfs-api glusterfs-fuse glusterfs-rdma glusterfs-libs glusterfs-cli glusterfs-client-xlators
heketiSecret=$(echo -n "admin@P@88W0rd" | base64)
cat << EOF > /etc/heketi/heketi-secret.yaml
apiVersion: v1
kind: Secret
metadata:
name: heketi-secret
namespace: kube-system
data:
key: ${heketiSecret}
type: kubernetes.io/glusterfs
EOF
kubectl apply -f heketi-secret.yaml
cat << EOF > /etc/heketi/heketi-storageclass.yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: glusterfs
namespace: kube-system
parameters:
resturl: "http://192.168.40.239:18080"
clusterid: "9ad37206ce6575b5133179ba7c6e0935"
restauthenabled: "true"
restuser: "admin"
secretName: "heketi-secret"
secretNamespace: "kube-system"
volumetype: "replicate:3" # 副本卷 3副本 # disperse 4 2 分散卷 4Data 2冗余 # none 条带卷
provisioner: kubernetes.io/glusterfs
reclaimPolicy: Delete # Retain 保留，Recycle 回收，Delete 删除
EOF
kubectl apply -f heketi-storageclass.yaml
cat << EOF > /etc/heketi/heketi-pvc.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: heketi-pvc
annotations:
volume.beta.kubernetes.io/storage-provisioner: kubernetes.io/glusterfs
spec:
storageClassName: "glusterfs"
accessModes:
- ReadWriteMany
resources:
requests:
storage: 20Gi
EOF
kubectl apply -f heketi-pvc.yaml
|