3.
修改
etcd
数据库配置
[root@node1 ~]
# vim /etc/etcd/etcd.conf
[root@node1 ~]
# cat /etc/etcd/etcd.conf
#[Member]
#ETCD_CORS=""
ETCD_DATA_DIR
=
"/var/lib/etcd/default.etcd"
#ETCD_WAL_DIR=""
#ETCD_LISTEN_PEER_URLS="http://localhost:2380"
#
#-------------------------------------------------
-------------------
#ETCD_LISTEN_CLIENT_URLS="http://localhost:2379"
ETCD_LISTEN_CLIENT_URLS
=
"http://0.0.0.0:2379,http:
//0.0.0.0:4001"
#-------------------------------------------------
------------------
#ETCD_MAX_SNAPSHOTS="5"
#ETCD_MAX_WALS="5"
ETCD_NAME
=
"default"
#ETCD_SNAPSHOT_COUNT="100000"
#ETCD_HEARTBEAT_INTERVAL="100"
#ETCD_ELECTION_TIMEOUT="1000"
#ETCD_QUOTA_BACKEND_BYTES="0"
#ETCD_MAX_REQUEST_BYTES="1572864"
#ETCD_GRPC_KEEPALIVE_MIN_TIME="5s"
#ETCD_GRPC_KEEPALIVE_INTERVAL="2h0m0s"
#ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"
#
#[Clustering]
#ETCD_INITIAL_ADVERTISE_PEER_URLS="http://localhos
t:2380"
#
#
#-------------------------------------------------
-----
#ETCD_ADVERTISE_CLIENT_URLS="http://localhost:2379
"
ETCD_ADVERTISE_CLIENT_URLS
=
"http://10.1.1.10:2379,
http://10.1.1.10:4001"
#-------------------------------------------------
-----
#ETCD_DISCOVERY=""
#ETCD_DISCOVERY_FALLBACK="proxy"
#ETCD_DISCOVERY_PROXY=""
#ETCD_DISCOVERY_SRV=""
#ETCD_INITIAL_CLUSTER="default=http://localhost:23
80"
#ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
#ETCD_INITIAL_CLUSTER_STATE="new"
#ETCD_STRICT_RECONFIG_CHECK="true"
#ETCD_ENABLE_V2="true"
#
#[Proxy]
#ETCD_PROXY="off"
#ETCD_PROXY_FAILURE_WAIT="5000"
#ETCD_PROXY_REFRESH_INTERVAL="30000"
#ETCD_PROXY_DIAL_TIMEOUT="1000"
#ETCD_PROXY_WRITE_TIMEOUT="5000"
#ETCD_PROXY_READ_TIMEOUT="0"
#
#[Security]
#ETCD_CERT_FILE=""
#ETCD_KEY_FILE=""
#ETCD_CLIENT_CERT_AUTH="false"
#ETCD_TRUSTED_CA_FILE=""
#ETCD_AUTO_TLS="false"
#ETCD_PEER_CERT_FILE=""
#ETCD_PEER_KEY_FILE=""
#ETCD_PEER_CLIENT_CERT_AUTH="false"
#ETCD_PEER_TRUSTED_CA_FILE=""
#ETCD_PEER_AUTO_TLS="false"
#
#[Logging]
#ETCD_DEBUG="false"
#ETCD_LOG_PACKAGE_LEVELS=""
#ETCD_LOG_OUTPUT="default"
#
#[Unsafe]
#ETCD_FORCE_NEW_CLUSTER="false"
#
#[Version]
#ETCD_VERSION="false"
#ETCD_AUTO_COMPACTION_RETENTION="0"
#
#[Profiling]
#ETCD_ENABLE_PPROF="false"
#ETCD_METRICS="basic"
#
#[Auth]
#ETCD_AUTH_TOKEN="simple"
4.
启动数据库
[root@node1 ~]
# systemctl start etcd.service
5.
设置开机启动
6.
测试端⼝
[root@node1 ~]
# netstat -lnput|grep 4001
tcp6
0 0
:::4001 :::*
LISTEN
1959
/etcd
[root@node1 ~]
# systemctl restart etcd.service
[root@node1 ~]
# netstat -lnput|grep 2379
tcp6
0 0
:::2379 :::*
LISTEN
2028
/etcd
7.
测试数据库功能
[root@node1 ~]
# etcdctl set testdir/testkey0 1000
1000
[root@node1 ~]
# etcdctl get testdir/testkey0
9.
修改
flannel
配置⽂件
[root@node1 ~]
# vim /etc/sysconfig/flanneld
[root@node1 ~]
# cat /etc/sysconfig/flanneld
# Flanneld configuration options
# etcd url location. Point this to the server
where etcd runs
# ------------------------------------------------
-------
FLANNEL_ETCD_ENDPOINTS
=
"http://10.1.1.10:2379"
#-------------------------------------------------
-------
# etcd config key. This is the configuration key
that flannel queries
# For address range assignment
FLANNEL_ETCD_PREFIX
=
"/atomic.io/network"
# Any additional options that you want to pass
#FLANNEL_OPTIONS=""
10.
向数据库中存⼊⽹段信息
[root@node1 ~]
# etcdctl mk
/atomic.io/network/config '{ "Network" :
"172.20.0.0/16" }'
{
"Network"
:
"172.20.0.0/16"
}
[root@node1 ~]
# etcdctl get
/atomic.io/network/config
{
"Network"
:
"172.20.0.0/16"
}
12.
查看
ip
地址
[root@node1 ~]# ip a s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc
noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd
00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu
1500 qdisc pfifo_fast state UP group default qlen
1000
link/ether 00:0c:29:94:72:1b brd
ff:ff:ff:ff:ff:ff
inet 10.1.1.10/24 brd 10.1.1.255 scope global
ens33
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe94:721b/64 scope link
valid_lft forever preferred_lft forever
3: flannel0:
<POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1472
qdisc pfifo_fast state UNKNOWN group default qlen
500
link/none
inet 172.20.20.0/16 scope global flannel0
valid_lft forever preferred_lft forever
inet6 fe80::1fae:d70e:eb38:5ec9/64 scope link
flags 800
valid_lft forever preferred_lft forever
已安装
:
yum-utils.noarch
0
:1.1.31-54.el7_8
作为依赖被安装
:
libxml2-python.x86_64
0
:2.9.1-6.el7_9.6
python-chardet.noarch
0
:2.2.1-3.el7
python-kitchen.noarch
0
:1.1.1-5.el7
完毕！
已加载插件：
fastestmirror
adding repo from:
https://mirrors.aliyun.com/docker
ce/linux/centos/docker-ce.repo
grabbing file https://mirrors.aliyun.com/docker
ce/linux/centos/docker-ce.repo to
/etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
已加载插件：
fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* epel: repo.jing.rocks
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
docker-ce-stable
|
3
.5 kB
00
:00:00
(1/2): docker-ce-stable/7/x86_64/updateinfo
|
55
B
00
:00:10
(2/2): docker-ce-stable/7/x86_64/primary_db
|
152
kB
00
:00:11
正在解决依赖关系
--
>
正在检查事务
---
>
软件包
containerd.io.x86_64.0.1.6.33-
3.1.el7
将被 安装
--
>
正在处理依赖关系
container-selinux >=
2
:2.74
，
它被软件包
containerd.io-1.6.33-3.1.el7.x86_64
需要
---
>
软件包
docker-buildx
plugin.x86_64.0.0.14.1-1.el7
将被 安装
---
>
软件包
docker-ce.x86_64.3.26.1.4-1.el7
将被
安装
--
>
正在处理依赖关系
docker-ce-rootless-extras
，它
被软件包
3
:docker-ce-26.1.4-1.el7.x86_64
需要
--
>
正在处理依赖关系
libcgroup
，它被软件包
3
:docker-ce-26.1.4-1.el7.x86_64
需要
---
>
软件包
docker-ce-cli.x86_64.1.26.1.4-1.el7
将被 安装
---
>
软件包
docker-compose
plugin.x86_64.0.2.27.1-1.el7
将被 安装
--
>
正在检查事务
---
>
软件包
container-selinux.noarch.2.2.119.2-
1.911c772.el7_8
将被 安装
--
>
正在处理依赖关系
policycoreutils-python
，它被软
件包
2
:container-selinux-2.119.2-
1.911c772.el7_8.noarch
需要
---
>
软件包
docker-ce-rootless
extras.x86_64.0.26.1.4-1.el7
将被 安装
--
>
正在处理依赖关系
fuse-overlayfs >=
0
.7
，它被软
件包
docker-ce-rootless-extras-26.1.4-1.el7.x86_64
需要
--
>
正在处理依赖关系
slirp4netns >=
0
.4
，它被软件包
docker-ce-rootless-extras-26.1.4-1.el7.x86_64
需要
---
>
软件包
libcgroup.x86_64.0.0.41-21.el7
将被
安装
--
>
正在检查事务
---
>
软件包
fuse-overlayfs.x86_64.0.0.7.2-
6.el7_8
将被 安装
--
>
正在处理依赖关系
libfuse3.so.3(FUSE_3.2)
(64bit)
，它被软件包
fuse-overlayfs-0.7.2-
6.el7_8.x86_64
需要
--
>
正在处理依赖关系
libfuse3.so.3(FUSE_3.0)
(64bit)
，它被软件包
fuse-overlayfs-0.7.2-
6.el7_8.x86_64
需要
--
>
正在处理依赖关系
libfuse3.so.3()(64bit)
，它被软
件包
fuse-overlayfs-0.7.2-6.el7_8.x86_64
需要
---
>
软件包
policycoreutils-python.x86_64.0.2.5-
34.el7
将被 安装
--
>
正在处理依赖关系
setools-libs >=
3
.3.8-4
，它被
软件包
policycoreutils-python-2.5-34.el7.x86_64
需
要
--
>
正在处理依赖关系
libsemanage-python >=
2
.5-
14
，它被软件包
policycoreutils-python-2.5-
34.el7.x86_64
需要
--
>
正在处理依赖关系
audit-libs-python >=
2
.1.3-
4
，它被软件包
policycoreutils-python-2.5-
34.el7.x86_64
需要
--
>
正在处理依赖关系
python-IPy
，它被软件包
policycoreutils-python-2.5-34.el7.x86_64
需要
--
>
正在处理依赖关系
libqpol.so.1(VERS_1.4)
(64bit)
，它被软件包
policycoreutils-python-2.5-
34.el7.x86_64
需要
--
>
正在处理依赖关系
libqpol.so.1(VERS_1.2)
(64bit)
，它被软件包
policycoreutils-python-2.5-
34.el7.x86_64
需要
--
>
正在处理依赖关系
libapol.so.4(VERS_4.0)
(64bit)
，它被软件包
policycoreutils-python-2.5-
34.el7.x86_64
需要
--
>
正在处理依赖关系
checkpolicy
，它被软件包
policycoreutils-python-2.5-34.el7.x86_64
需要
--
>
正在处理依赖关系
libqpol.so.1()(64bit)
，它被软
件包
policycoreutils-python-2.5-34.el7.x86_64
需要
--
>
正在处理依赖关系
libapol.so.4()(64bit)
，它被软
件包
policycoreutils-python-2.5-34.el7.x86_64
需要
---
>
软件包
slirp4netns.x86_64.0.0.4.3-4.el7_8
将被 安装
--
>
正在检查事务
---
>
软件包
audit-libs-python.x86_64.0.2.8.5-
4.el7
将被 安装
---
>
软件包
checkpolicy.x86_64.0.2.5-8.el7
将被
安装
---
>
软件包
fuse3-libs.x86_64.0.3.6.1-4.el7
将被
安装
---
>
软件包
libsemanage-python.x86_64.0.2.5-
14.el7
将被 安装
---
>
软件包
python-IPy.noarch.0.0.75-6.el7
将被
安装
---
>
软件包
setools-libs.x86_64.0.3.3.8-4.el7
将
被 安装
--
>
解决依赖关系完成
依赖关系解决
==================================================
==================================================
============
Package
架构
版
本
源
⼤⼩
==================================================
==================================================
============
正在安装
:
containerd.io x86_64
1
.6.33-3.1.el7 docker-ce
stable
35
M
docker-buildx-plugin x86_64
0
.14.1-1.el7 docker-ce
stable
14
M
docker-ce x86_64
3
:26.1.4-1.el7 docker-ce
stable
27
M
docker-ce-cli x86_64
1
:26.1.4-1.el7 docker-ce
stable
15
M
docker-compose-plugin x86_64
2
.27.1-1.el7 docker-ce
stable
13
M
为依赖⽽安装
:
audit-libs-python x86_64
2
.8.5-4.el7 base
76
k
checkpolicy x86_64
2
.5-8.el7 base
295
k
container-selinux noarch
2
:2.119.2-1.911c772.el7_8 extras
40
k
docker-ce-rootless-extras x86_64
26
.1.4-1.el7 docker-ce
stable
9
.4 M
fuse-overlayfs x86_64
0
.7.2-6.el7_8 extras
54
k
fuse3-libs x86_64
3
.6.1-4.el7 extras
82
k
libcgroup x86_64
0
.41-21.el7 base
66
k
libsemanage-python x86_64
2
.5-14.el7 base
113
k
policycoreutils-python x86_64
2
.5-34.el7 base
457
k
python-IPy noarch
0
.75-6.el7 base
32
k
setools-libs x86_64
3
.3.8-4.el7 base
620
k
slirp4netns x86_64
0
.4.3-4.el7_8 extras
81
k
事务概要
==================================================
==================================================
============
安装
5
软件包
(+
12
依赖软件包
)
总下载量：
116 M
安装⼤⼩：
407 M
Downloading packages:
(1/17): container-selinux-2.119.2-
1.911c772.el7_8.noarch.rpm
|
40
kB
00
:00:00
(2/17): audit-libs-python-2.8.5-4.el7.x86_64.rpm
|
76
kB
00
:00:02
(3/17): checkpolicy-2.5-8.el7.x86_64.rpm
|
295
kB
00
:00:03
warning: /var/cache/yum/x86_64/7/docker-ce
stable/packages/docker-buildx-plugin-0.14.1-
1.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature,
key ID 621e9f35: NOKEY
docker-buildx-plugin-0.14.1-1.el7.x86_64.rpm
的公钥
尚未安装
(4/17): docker-buildx-plugin-0.14.1-
1.el7.x86_64.rpm
|
14
MB
00
:02:11
(5/17): containerd.io-1.6.33-3.1.el7.x86_64.rpm
|
35
MB
00
:05:22
(6/17): docker-ce-cli-26.1.4-1.el7.x86_64.rpm
|
15
MB
00
:00:35
(7/17): docker-ce-26.1.4-1.el7.x86_64.rpm
|
27
MB
00
:03:50
(8/17): fuse-overlayfs-0.7.2-6.el7_8.x86_64.rpm
|
54
kB
00
:00:03
(9/17): libcgroup-0.41-21.el7.x86_64.rpm
|
66
kB
00
:00:03
(10/17): fuse3-libs-3.6.1-4.el7.x86_64.rpm
|
82
kB
00
:00:03
(11/17): libsemanage-python-2.5-14.el7.x86_64.rpm
|
113
kB
00
:00:02
(12/17): python-IPy-0.75-6.el7.noarch.rpm
|
32
kB
00
:00:00
(13/17): policycoreutils-python-2.5-
34.el7.x86_64.rpm
|
457
kB
00
:00:05
(14/17): slirp4netns-0.4.3-4.el7_8.x86_64.rpm
|
81
kB
00
:00:02
(15/17): setools-libs-3.3.8-4.el7.x86_64.rpm
|
620
kB
00
:00:02
(16/17): docker-compose-plugin-2.27.1-
1.el7.x86_64.rpm
|
13
MB
00
:01:28
(17/17): docker-ce-rootless-extras-26.1.4-
1.el7.x86_64.rpm |
9
.4 MB
00
:01:33
--------------------------------------------------
--------------------------------------------------
------------
总计
262
kB/s |
116
MB
00
:07:31
从
https://mirrors.aliyun.com/docker
ce/linux/centos/gpg
检索密钥
导⼊
GPG key 0x621E9F35:
⽤户
ID :
"Docker Release (CE rpm)
<docker@docker.com>"
指纹
: 060a 61c5 1b55 8a7f 742b 77aa c52f
eb6b 621e 9f35
来⾃
: https://mirrors.aliyun.com/docker
ce/linux/centos/gpg
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
正在安装
: libcgroup-0.41-21.el7.x86_64
1
/17
正在安装
: docker-buildx-plugin-0.14.1-
1.el7.x86_64
2
/17
正在安装
: setools-libs-3.3.8-4.el7.x86_64
3
/17
正在安装
: audit-libs-python-2.8.5-
4.el7.x86_64
4
/17
正在安装
: slirp4netns-0.4.3-4.el7_8.x86_64
5
/17
正在安装
: libsemanage-python-2.5-
14.el7.x86_64
6
/17
正在安装
: python-IPy-0.75-6.el7.noarch
7
/17
正在安装
: fuse3-libs-3.6.1-4.el7.x86_64
8
/17
正在安装
: fuse-overlayfs-0.7.2-6.el7_8.x86_64
9
/17
正在安装
: checkpolicy-2.5-8.el7.x86_64
10
/17
正在安装
: policycoreutils-python-2.5-
34.el7.x86_64
11
/17
正在安装
:
2
:container-selinux-2.119.2-
1.911c772.el7_8.noarch
12
/17
正在安装
: containerd.io-1.6.33-3.1.el7.x86_64
13
/17
正在安装
: docker-compose-plugin-2.27.1-
1.el7.x86_64
14
/17
正在安装
:
1
:docker-ce-cli-26.1.4-1.el7.x86_64
15
/17
正在安装
: docker-ce-rootless-extras-26.1.4-
1.el7.x86_64
16
/17
正在安装
:
3
:docker-ce-26.1.4-1.el7.x86_64
17
/17
验证中
: docker-compose-plugin-2.27.1-
1.el7.x86_64
1
/17
验证中
: checkpolicy-2.5-8.el7.x86_64
2
/17
验证中
: fuse3-libs-3.6.1-4.el7.x86_64
3
/17
验证中
: python-IPy-0.75-6.el7.noarch
4
/17
验证中
: fuse-overlayfs-0.7.2-6.el7_8.x86_64
5
/17
验证中
: libsemanage-python-2.5-
14.el7.x86_64
6
/17
验证中
: slirp4netns-0.4.3-4.el7_8.x86_64
7
/17
验证中
:
2
:container-selinux-2.119.2-
1.911c772.el7_8.noarch
8
/17
验证中
: containerd.io-1.6.33-3.1.el7.x86_64
9
/17
验证中
:
3
:docker-ce-26.1.4-1.el7.x86_64
10
/17
验证中
:
1
:docker-ce-cli-26.1.4-1.el7.x86_64
11
/17
验证中
: policycoreutils-python-2.5-
34.el7.x86_64
12
/17
验证中
: docker-ce-rootless-extras-26.1.4-
1.el7.x86_64
13
/17
验证中
: audit-libs-python-2.8.5-
4.el7.x86_64
14
/17
验证中
: setools-libs-3.3.8-4.el7.x86_64
15
/17
验证中
: docker-buildx-plugin-0.14.1-
1.el7.x86_64
16
/17
验证中
: libcgroup-0.41-21.el7.x86_64
17
/17
已安装
:
containerd.io.x86_64
0
:1.6.33-3.1.el7
docker-buildx-plugin.x86_64
0
:0.14.1-1.el7
docker-ce.x86_64
3
:26.1.4-1.el7
docker-ce-cli.x86_64
1
:26.1.4-1.el7
docker-compose-plugin.x86_64
0
:2.27.1-1.el7
作为依赖被安装
:
audit-libs-python.x86_64
0
:2.8.5-4.el7
checkpolicy.x86_64
0
:2.5-8.el7
container-selinux.noarch
2
:2.119.2-
1.911c772.el7_8 docker-ce-rootless
extras.x86_64
0
:26.1.4-1.el7
fuse-overlayfs.x86_64
0
:0.7.2-6.el7_8
fuse3-libs.x86_64
0
:3.6.1-4.el7
libcgroup.x86_64
0
:0.41-21.el7
libsemanage-python.x86_64
0
:2.5-14.el7
policycoreutils-python.x86_64
0
:2.5-34.el7
python-IPy.noarch
0
:0.75-6.el7
setools-libs.x86_64
0
:3.3.8-4.el7
slirp4netns.x86_64
0
:0.4.3-4.el7_8
完毕！
14.docker
服务没有开启之前查看
ip
[root@node1 ~]
# ifconfig
ens33:
flags
=
4163
<UP,BROADCAST,RUNNING,MULTICAST>
mtu
1500
inet
10
.1.1.10 netmask
255
.255.255.0
broadcast
10
.1.1.255
inet6 fe80::20c:29ff:fe94:721b prefixlen
64
scopeid 0x20<link>
ether
00
:0c:29:94:72:1b txqueuelen
1000
(Ethernet)
RX packets
105369
bytes
146824987
(140.0
MiB)
RX errors
0
dropped
0
overruns
0
frame
0
TX packets
39963
bytes
3021936
(2.8 MiB)
TX errors
0
dropped
0
overruns
0
carrier
0
collisions
0
flannel0:
flags
=
4305
<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>
mtu
1472
inet
172
.20.20.0 netmask
255
.255.0.0
destination
172
.20.20.0
inet6 fe80::1fae:d70e:eb38:5ec9 prefixlen
64
scopeid 0x20<link>
unspec
00
-00-00-00-00-00-00-00-00-00-00-
00-00-00-00-00
txqueuelen
500
(UNSPEC)
RX packets
0
bytes
0
(0.0 B)
RX errors
0
dropped
0
overruns
0
frame
0
TX packets
3
bytes
144
(144.0 B)
TX errors
0
dropped
0
overruns
0
carrier
0
collisions
0
lo:
flags
=
73
<UP,LOOPBACK,RUNNING> mtu
65536
inet
127
.0.0.1 netmask
255
.0.0.0
inet6 ::1 prefixlen
128
scopeid
0x10<host>
loop txqueuelen
1000
(Local Loopback)
RX packets
993
bytes
65146
(63.6 KiB)
RX errors
0
dropped
0
overruns
0
frame
0
TX packets
993
bytes
65146
(63.6 KiB)
TX errors
0
dropped
0
overruns
0
carrier
0
collisions
0
TX errors
0
dropped
0
overruns
0
carrier
0
collisions
0
16.
查看
flannel
⼦⽹
ip
[root@node1 ~]
# cat /run/flannel/subnet.env
FLANNEL_NETWORK
=
172
.20.0.0/16
FLANNEL_SUBNET
=
172
.20.20.1/24
FLANNEL_MTU
=
1472
FLANNEL_IPMASQ
=
false
17.
从其他主机复制⼀份
daemon.json
⽂件
[root@node1 ~]
# scp
root@10.1.1.50:/etc/docker/daemon.json
/etc/docker/
root@10.1.1.50
's password:
daemon.json
100
%
385 111
.9KB/s
00
:00
18.
修改添加桥
ip
和路由字节
1472-1500
[root@node1 ~]# vim /etc/docker/daemon.json
[root@node1 ~]# cat /etc/docker/daemon.json
{
"insecure-registries":[
"http://10.1.1.50"
],
"registry-mirrors": [
"https://do.nark.eu.org",
"https://dc.j8.work",
"https://docker.m.daocloud.io",
"https://dockerproxy.com",
"https://docker.mirrors.ustc.edu.cn",
"https://docker.nju.edu.cn"
],
"hosts": [
"tcp://0.0.0.0:2375",
"unix:///var/run/docker.sock"
],
"bip": "172.20.20.1/24",
"mtu": 1472
}
19.
修改
docker
配置⽂件
[root@node1 ~]
# vim
/usr/lib/systemd/system/docker.service
20.
加载配置，重启
docker
服务
[root@node1 ~]# systemctl daemon-reload
[root@node1 ~]# systemctl restart docker.service
21.
查看
ip
地址
[root@node1 ~]# ip a s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc
noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd
00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu
1500 qdisc pfifo_fast state UP group default qlen
1000
link/ether 00:0c:29:94:72:1b brd
ff:ff:ff:ff:ff:ff
inet 10.1.1.10/24 brd 10.1.1.255 scope global
ens33
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe94:721b/64 scope link
valid_lft forever preferred_lft forever
3: flannel0:
<POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1472
qdisc pfifo_fast state UNKNOWN group default qlen
500
link/none
inet 172.20.20.0/16 scope global flannel0
valid_lft forever preferred_lft forever
inet6 fe80::1fae:d70e:eb38:5ec9/64 scope link
flags 800
valid_lft forever preferred_lft forever
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP>
mtu 1472 qdisc noqueue state DOWN group default
link/ether 02:42:ba:f0:5f:1e brd
ff:ff:ff:ff:ff:ff
inet 172.20.20.1/24 brd 172.20.20.255 scope
global docker0
valid_lft forever preferred_lft forever
22.
拉取⼀个镜像测试
ip
地址
[root@node1 ~]
# docker pull centos
Using default tag: latest
latest: Pulling from library/centos
a1d0c7532777: Pull complete
Digest:
sha256:a27fd8080b517143cbbbab9dfb7c8571c40d67d534b
bdee55bd6c473f432b177
Status: Downloaded newer image
for
centos:latest
docker.io/library/centos:latest
[root@node1 ~]
# docker run -it centos:latest
/bin/bash
[root@be00f4423f5b /]
# [root@node1 ~]# docker
images
REPOSITORY TAG IMAGE ID CREATED
SIZE
centos latest 5d0da3dc9764
2
years ago
23
