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Harbor high availability cluster design and deployment (practice + video), based on offline installation
2022-06-21 20:33:00 【51CTO】
【 Abstract 】 Based on offline installation Harbor High availability cluster deployment scheme , From theory to practice , file + The way of video combination is comprehensive 、 Explain the deployment process in detail .
1. Environmental statement
1.1 Architecture diagram
1.2 Host list
IP Address | Host name | describe |
192.168.2.107 | harbor1 | Harbor example 1,8021 port |
192.168.2.108 | harbor2 | Harbor example 2,8021 port |
192.168.2.110 | harbor-data | Deploy Harbor Shared storage of instances 、 External database 、 External cache service |
192.168.2.111 | / | Load balancing VIP,8121 port |
1.3 Cluster topology
1.4 Service version
The version requirements of relevant services are shown in table ：
service | Version for | Installed version |
Harbor | / | 2.3.5 |
Docker | 17.06.0+ | 19.03.8 |
Docker-compose | 1.18.0+ | v2.2.3 |
Redis | 6.0.16 | 6.2.7 |
PostgreSQL | v13.2+ | 13.5 |
2. Host initialization
Harbor The instance host is initialized
- install docker
- install docker-compose
- Configure kernel parameters
2.1 install docker
$ wget
-O /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
$ yum install
-y docker-ce
$ systemctl enable
--now docker
$ systemctl status docker
$ cat
<<EOF > /etc/docker/daemon.json
{
"registry-mirrors": ["https://xcg41ct3.mirror.aliyuncs.com"],
"exec-opts": ["native.cgroupdriver=systemd"],
"registry-mirrors":
["https://3hjcmqfe.mirror.aliyuncs.com"],
"log-driver": "json-file",
"log-opts": {
"max-size": "500m",
"max-file": "2"
}
}
EOF
$ systemctl daemon-reload
$ systemctl restart docker
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exec-opts": ["native.cgroupdriver=systemd"], # Driver
registry-mirrors: Image acceleration address , Can be more
max-file: log Maximum quantity to be retained
live-restore: restart docker Do not restart the container , be chiefly used in k8s On
2.2 install docker-compose
install docker-compose 1.18.0 Version above , Installed here v2.2.3 edition .
2.3 Configure kernel parameters
3. Use NFS Provide external storage
stay 192.168.2.110 Deploy NFS The service provides shared storage to Harbor1 example 、Harbor2 Case use .
192.168.2.110 As NFS Server side ,harbor The instance is the client .
3.1 Deploy NFS Server side
1） Install and start nfs
Be careful ： Forwarding request to “systemctl enable nfs.service”.
2） Create shared directory
The data of the client will be stored in the shared directory remotely .
3） Modify the configuration
4） restart nfs service
5） Check shared directory information
3.2 Deploy client
stay harbor1 and harbor2 On the operation
3.3 Client mount NFS Shared memory
stay harbor1 and harbor2 Node operation , Create the instance storage directory , Then mount the track NFS.
Mount format ：NFSIP: share directory Local directory nfs defaults 0 0
Test whether it can be used normally :
[[email protected] ~]
# touch
/data/harbor_data/test.txt
[[email protected] ~]
# ls /data/harbor_data/
test.txt
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4. Deploy Redis Caching services （ Source code ）
stay 192.168.2.110 Deploy Redis Caching services , by harbor1 and harbor2 Instance provides external redis Caching services .
Redis It's a high-performance key/value Distributed memory database .
4.1 Download installation package
4.2 Install dependency packages
4.3 Source code compilation
[[email protected] ~]
mkdir
-p /app/
[[email protected] ~] tar zxvf redis-6.2.7.tar.gz
-C /app
[[email protected] ~]
cd /app/redis-6.2.7/
[[email protected] redis-6.2.7]
# make # compile
[[email protected] redis-6.2.7]
# make install # install
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4.4 Modify the configuration file
redis By default, only local use is supported , This part needs to be modified to be externally connectable ;
redis Starting mode ;
redis Remote connection password ;
[[email protected] ~]
# vim /app/redis-6.2.7/redis.conf
#bind 127.0.0.1 -::1 #75 That's ok , Comment out bind The line of , Allow any host connection ;
daemonize
yes
#259 That's ok , take no It is amended as follows yes, send redis You can use daemon mode to start ;
requirepass lidabai666
#903 That's ok , Set up redis Connected auth password （lidabai666）
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4.5 start-up Redis service
The above configuration uses the daemon mode to start , So use it directly systemctl You can start redis service .
[[email protected] redis-6.2.7]
# pwd
/app/redis-6.2.7
[[email protected] redis-6.2.7]
# redis-server redis.conf
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4.6 see Redis Service version
4.7 Check the port
redis Default listening 6379 port
[[email protected] redis-6.2.7]
# ps aux | grep 6379
root
6200
0.1
0.2
162416
10020 ? Ssl
17:59
0:00 redis-server *:6379
root
6231
0.0
0.0
112720
984 pts/0 R
+
18:01
0:00
grep
--color
=auto
6379
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4.8 Client connection Redis
harbor1 and harbor2 As redis client
Client side usage redis-cli Tool connection Redis The server
[[email protected] redis-6.2.7]
# which redis-cli # see redis-cli Tool location
/usr/local/bin/redis-cli
[[email protected] redis-6.2.7]
# scp /usr/local/bin/redis-cli 192.168.2.107:/usr/local/bin/
[[email protected] redis-6.2.7]
# scp /usr/local/bin/redis-cli 192.168.2.108:/usr/local/bin/
[[email protected] ~]
# redis-cli -h 192.168.2.110 -p 6379 -a lidabai666
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-a Parameter assignment redis Connect the password
5. Deploy PostgreSQL External database services （ Source code ）
stay 192.168.2.110 The host is installed in the form of source code PostgreSQL Database services , by harbor1 and harbor2 Instance provides shared storage .
5.1 newly build postgres user
Default superuser （root） Cannot start postgresql, Users need to be created manually postgres.
[[email protected] ~]
# useradd postgres
[[email protected] ~]
# id postgres
uid
=
1000(postgres)
gid
=
1000(postgres) Group
=
1000(postgres)
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5.2 Install dependency packages
5.3 Download the source code
5.4 Compilation and installation
[[email protected] ~]
# cd /app/postgresql-13.5/
[[email protected] postgresql-13.5]
# ./configure --prefix=/usr/local/postgresql
[[email protected] postgresql-13.5]
# make && make install
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5.5 Create a data directory
5.6 Set up postgres environment variable
[[email protected] postgresql-13.5]
# su - postgres
[[email protected] ~]
$ vim
+ .bash_profile
PGHOME
=/usr/local/postgresql
#psql The installation directory
export PGHOME
PGDATA
=/data/postgresql/data
# Database directory
export PGDATA
PATH
=
$PATH:
$HOME/bin:
$HOME/.local/bin:
$PGHOME/bin
export PATH
[[email protected] ~]
$ source ./.bash_profile
[[email protected] ~]
$ which psql
/usr/local/postgresql/bin/psql
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- View version
5.7 Initialize database
because Red Hat Policy for series releases ,PostgreSQL The installation does not enable automatic startup or automatic initialization of the database . To complete the database installation , You need to perform the following steps according to your distribution ：
[[email protected] ~]
$ initdb
......
You can change this by editing pg_hba.conf or
using the option
-A, or
--auth
-local and
--auth
-host, the next time
you run initdb.
Success. You can now
start the database
server using:
# Indicates successful initialization
pg_ctl
-D /data/postgresql/data
-l logfile
start
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5.8 start-up PostgreSQL
Execute the startup command according to the prompt after successful initialization ！
[[email protected] ~]
$ pg_ctl
-D /data/postgresql/data
-l logfile
start
waiting
for server to
start....
done
server started
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5.9 Set up （ modify ）Postgresql password
Default psql Local login does not require a password , Even if we set the password , You don't need a password to log in . Expected profile pg_hba.conf Medium local Set to trust , For the sake of safety, we modify it to password, Is to use a password to log in ,（ When we forget the password , You can also use this way , Set to trust after , Change Password , Then set to password.
[[email protected] ~]
$ psql
psql (13.5)
Type
"help"
for help.
postgres
=
# \password
Enter new password:
# Enter the set password Lidabai666
Enter it again:
# Confirm the password （ Input again ）
postgres
=
# \q # sign out
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5.10 Set remote login PostgreSQL
[[email protected] ~]
$ vim /data/postgresql/data/postgresql.conf
listen_addresses
=
'*'
#60 That's ok , Listen to all addresses
[[email protected] ~]
$ vim
+
/data/postgresql/data/pg_hba.conf
local
all all password
host
all all
0.0.0.0/0 password
host
all all ::1/128 password
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5.10 restart PostgreSQL
5.11 Create database
Harbor 2.3.5 The database you need to create ：notaryserver、notarysigner、registry at present Harbor Support only PostgraSQL database , It needs to be manually on the outside PostgreSQL To create a harbor、notary_signer、notary_servers Three databases ,Harbor When starting, the table will be automatically generated under the corresponding database .
Because this place is mainly a demonstration environment ,PostgreSQL Database users are super Administrators - postgres For example , If it's a production environment , It is recommended to create a new user , And conferred harbor、notary_signer、notary_servers The corresponding permissions of the three databases .
[[email protected] ~]
$ psql
Password
for user postgres:
# Input password
postgres
=
# create database registry;
CREATE DATABASE
postgres
=
# create database notary_signer;
CREATE DATABASE
postgres
=
# create database notary_servers;
CREATE DATABASE
postgres
=
# \l
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5.12 Create user
establish server Users and signer user
5.13 Client test link
6. Load balancing settings （Nginx +Keepalived）
Use keepalived and Nginx Realization harbor High availability .
stay harbor1 and harbor2 Install on node keepalived Services to provide VIP Load balancing .Nginx Service realization will come VIP Forward your request to the back-end server group harbor
6.1 install nginx and keepalived
stay harbor1 and harbor2 operation
nginx from 1.9.0 Start adding steam modular , It is used to realize the forwarding of layer 4 protocol 、 agent 、 Load balancing, etc. .
Binary installed nginx It's in ./configure add --with-stream Parameters to install stream modular .
6.2 modify nginx The configuration file
stay harbor1 and harbor2 Of Nginx The same as the service configuration file .
$ vim /etc/nginx/nginx.conf
user nginx;
worker_processes auto;
# Automatic setting nginx Number of work processes for
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
include /usr/share/nginx/modules/*.conf;
events {
worker_connections
1024;
# Number of connections for worker process
}
# Four layer load balancing , For two harbor Provide load balancing
stream {
log_format main
'$remote_addr $upstream_addr - [$time_local]
$status $upstream_bytes_sent';
access_log /var/log/nginx/harbor-access.log main;
upstream harbor{
server
192.168.2.107:8021;
# harbor1
server
192.168.2.108:8021;
# harbor2
}
server {
listen
8121;
# because nginx And harbor Node reuse , This listening port cannot be 8021, Otherwise it will conflict
proxy_pass harbor;
}
}
http {
log_format main
'$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout
65;
types_hash_max_size
2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
server {
listen
80 default_server;
server_name _;
location / {
}
}
}
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- testing nginx Profile syntax
6.3 modify keepalived To configure
This department harbor1 by keepalived The master node of the service ,harbor2 by keepalived Standby node of . The number of active and standby nodes keepalived The configuration files are different .
Master node （harbor1）
[[email protected] ~]
# cat /etc/keepalived/keepalived.conf
! Configuration File
for keepalived
global_defs {
notification_email {
859281177@qq.com
}
router_id master1
}
vrrp_instance lidabai {
state MASTER
interface ens33
mcast_src_ip：192.168.2.107
virtual_router_id
107
priority
100
advert_int
1
nopreempt
authentication {
auth_type PASS
auth_pass
1111
}
virtual_ipaddress {
192.168.2.111/24
# fictitious VIP Address
}
track_script {
chk_nginx
}
}
##### health examination
vrrp_script chk_nginx {
script
"/etc/keepalived/check_nginx.sh"
interval
2
weight
-20
}
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For the node （harbor2）
[[email protected] ~]
# cat /etc/keepalived/keepalived.conf
! Configuration File
for keepalived
global_defs {
notification_email {
859281177@qq.com
}
router_id master2
}
vrrp_instance lidabai {
state BACKUP
interface ens33
mcast_src_ip：192.168.2.108
virtual_router_id
107
priority
80
# The weight
advert_int
1
nopreempt
authentication {
auth_type PASS
auth_pass
1111
}
virtual_ipaddress {
192.168.2.111/24
}
track_script {
chk_nginx
}
}
vrrp_script chk_nginx {
script
"/etc/keepalived/check_nginx.sh"
interval
2
weight
-20
}
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6.4 Write a health check script
At the primary and standby nodes （harbor1 and harbor2） Same operation .
$ vim /etc/keepalived/check_nginx.sh
#1、 Judge Nginx Survival
counter
=
`ps -C nginx --no-header | wc -l`
if [
$counter
-eq
0 ];
then
#2、 If it doesn't survive, try to start Nginx
service nginx
start
sleep
2
#3、 wait for 2 Get it again in seconds Nginx state
counter
=
`ps -C nginx --no-header | wc -l`
#4、 Judge again , Such as Nginx If you don't survive, stop Keepalived, Let the address drift
if [
$counter
-eq
0 ];
then
service keepalived
stop
fi
fi
$ chmod
+x /etc/keepalived/check_nginx.sh
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6.5 Start the service
Start... First master1 and master2 nodes nginx service , Restart keepalived service
1） start-up nginx service
[[email protected] ~]
# systemctl enable --now nginx # start-up nginx Service and set to start automatically
[[email protected] ~]
# systemctl enable --now nginx
[[email protected] ~]
# systemctl status nginx.service
[[email protected] ~]
# systemctl status nginx.service
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2） start-up keepalived service
[[email protected] ~]
# systemctl enable --now keepalived
[[email protected] ~]
# systemctl enable --now keepalived
[[email protected] ~]
# systemctl status keepalived.service
[[email protected] ~]
# systemctl status keepalived.service
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6.6 see VIP
stay harbor1 Node view VIP Is the binding successful .
[[email protected] ~]
# ip addr
......
2: ens33:
<BROADCAST,MULTICAST,UP,LOWER_UP> mtu
1500 qdisc pfifo_fast state UP
group default qlen
1000
link/ether
00:0c:29:f1:a3:65 brd ff:ff:ff:ff:ff:ff
inet
192.168.2.107/24 brd
192.168.2.255 scope global
noprefixroute ens33
valid_lft forever preferred_lft forever
inet
192.168.2.111/24 scope global secondary ens33
#VIP Address
valid_lft forever preferred_lft forever
inet6 fe80::80b0:1d7f:b5d4:19e8/64 scope link tentative dadfailed
......
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adopt ifconfig I can't see VIP Of , adopt `hostname -I` Command can also view VIP.
7. Deploy Harbor example 1
stay harbor1 192.168.2.107 Deployment on host harbor service
7.1 Download and extract the offline installation package
7.2 Modify the configuration file
Copy the profile template as a profile , Then modify the corresponding parameters .
[[email protected] ~]
# cd /app/harbor/
[[email protected] harbor]
# cp
harbor.yml.tmpl harbor.yml
[[email protected] harbor]
# vim harbor.yml
hostname:
192.168.2.107
http:
port:
8021
# Cancel https Secure encrypted access ：
#https:
# port: 443
# certificate: /your/certificate/path
# private_key: /your/private/key/path
## Enable external proxy , When enabled hostname Will no longer use
external_url: http:192.168.2.111:8121
## Configure shared storage , Mounted NFS Catalog
data_volume: /data/harbor_data
_version:
2.3.0
## Configure external database
external_database:
harbor:
host:
192.168.2.110
# Database host address
port:
5432
# Database port
db_name: registry
# Database name
username: postgres
# User name to connect to the database
password: Lidabai666
# Password to connect to the database
ssl_mode: disable
max_idle_conns:
2
max_open_conns:
0
notary_signer:
host:
192.168.2.110
port:
5432
db_name: notary_signer
username: postgres
password: Lidabai666
ssl_mode: disable
notary_server:
host:
192.168.2.110
port:
5432
db_name: notary_server
username: postgres
password: Lidabai666
ssl_mode: disable
## Configure external Redis example ：
external_redis:
host:
192.168.2.110:6379
#redis service IP Address and port number . If redis It's sentinel mode ,
# This is supposed to be host_sentinel1:port_sentinel1,host_sentinel2:port_sentinel2
password: lidabai666
# Connect external redis Password for the service
# sentinel_master_set: # Use only Sentinel Pattern （ Sentinel mode ） When using
registry_db_index:
1
jobservice_db_index:
2
#job Database index of the service
chartmuseum_db_index:3
#chartmuseum The plug-in Redis Indexes
trivy_db_index:
5
#Trivy Scanner data index
idle_timeout_seconds:
30
# Timeout time
# Enable metrics Data acquisition plug-in ：
metric:
enabled:
true
port:
9090
path: /metrics
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7.3 Inject the configuration file into the component
take harbor.yml The contents of the configuration file are injected into the configuration file of each component .
7.4 install Harbor
The image will be automatically imported during installation , The execution will start automatically Harbor service .
----Harbor has been
installed and started successfully.---- Indicates successful installation ！
7.5 View service status
7.6 Browser login Harbor UI
Use instance host IP+ The port is accessed in the browser harbor UI
http://192.168.2.107:8021
user name ：admin
password ： Harbor12345
8. Deploy Harbor example 2
Operation steps and deployment Harbor example 1 Agreement
[[email protected] harbor]
# mkdir /app
[[email protected] harbor]
# wget https://github.com/goharbor/harbor/releases/download/v2.3.5/harbor-offline-installer-v2.3.5.tgz
[[email protected] harbor]
# tar zxvf harbor-offline-installer-v2.3.5.tgz -C /app/
[[email protected] harbor]
# scp 192.168.2.107:/app/harbor/harbor.yml /app/harbor/
[[email protected] harbor]
# vim /app/harbor/harbor.yml’
hostname:
192.168.2.108
[[email protected] harbor]
# ./prepare
[[email protected] harbor]
# ./install.sh --with-trivy --with-chartmuseum
[[email protected] harbor]
# docker-compose ps
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9. Service validation
9.1 Browser access VIP And port
http://192.168.2.111:8121
stay Harbor UI Interface test image push 、 Pull 、 Create user 、 Whether it is normal to create a project
9.2 Command line login Harbor
There is an error ：
Error response from daemon: Get https://192.168.2.111:8121/v2/: http: server gave HTTP response to HTTPS client
stay docker Add parameters to the configuration file ：
[[email protected] harbor]
# vim /etc/docker/daemon.json
{
"registry-mirrors": [
"https://xcg41ct3.mirror.aliyuncs.com"],
"exec-opts": [
"native.cgroupdriver=systemd"],
"registry-mirrors": [
"https://3hjcmqfe.mirror.aliyuncs.com"],
"insecure-registries": [
"192.168.2.111:8121"],
"log-driver":
"json-file",
"log-opts": {
"max-size":
"500m",
"max-file":
"2"
}
}
[[email protected] harbor]
# systemctl restart docker # And then restart docker
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9.3 towards Harbor Push the mirror
[[email protected] harbor]
# docker pull alpine:3.16
[[email protected] harbor]
# docker tag alpine:3.16 192.168.2.111:8121/lidabai/alpine:3.16
[[email protected] harbor]
# docker push 192.168.2.111:8121/lidabai/alpine:3.16
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Then you can go to Harbor UI The interface shows that the image has been pushed successfully ！
10、 Video part
because 51 No videos uploaded , video and file All on wechat official account 《Harbor The advanced combat 》 了
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