dockerfile结构
[root@localhost ~]# tree haproxy/
haproxy/
├── Dockerfile
└── files
├── entrypoint.sh
├── haproxy-1.7.8.tar.gz
├── haproxy.cfg
└── install.sh
1 directory, 5 files
dockerfile
[root@localhost ~]# cat haproxy/Dockerfile
FROM centos
ENV version 1.7.8
ENV PATH /usr/local/harpoxy/sbin:$PATH
ADD files/haproxy-${version}.tar.gz /usr/src/
ADD files/install.sh /tmp/
ADD files/entrypoint.sh /
EXPOSE 8189 80
RUN ["/bin/bash","-c","/tmp/install.sh"]
WORKDIR /usr/local/haproxy/
CMD ["/entrypoint.sh"]
entrypoint.sh
[root@localhost ~]# cat haproxy/files/entrypoint.sh
#!/bin/bash
cat > /usr/local/haproxy/conf/haproxy.cfg <<EOF
global
log 127.0.0.1 local0 info
#log loghost local0 info
maxconn 20480
#chroot /usr/local/haproxy
pidfile /var/run/haproxy.pid
#maxconn 4000
user haproxy
group haproxy
daemon
#---------------------------------------------------------------------
#common defaults that all the 'listen' and 'backend' sections will
#use if not designated in their block
#---------------------------------------------------------------------
defaults
mode http
log global
option dontlognull
option httpclose
option httplog
#option forwardfor
option redispatch
balance roundrobin
timeout connect 10s
timeout client 10s
timeout server 10s
timeout check 10s
maxconn 60000
retries 3
#--------------统计页面配置------------------
listen admin_stats
bind 0.0.0.0:8189
stats enable
mode http
log global
stats uri /haproxy_stats
stats realm Haproxy\ Statistics
stats auth admin:admin
#stats hide-version
stats admin if TRUE
stats refresh 30s
#---------------web设置-----------------------
listen webcluster
bind 0.0.0.0:80
mode http
#option httpchk GET /index.html
log global
maxconn 3000
balance roundrobin
cookie SESSION_COOKIE insert indirect nocache
EOF
Snu=1
for rs_ip in $(cat /tmp/RSe.txt);do
cat >> /usr/local/haproxy/conf/haproxy.cfg <<EOF
server web$Snu $rs_ip:80 check inter 2000 fall 5
EOF
let Snu++
done
/usr/local/haproxy/sbin/haproxy -f /usr/local/haproxy/conf/haproxy.cfg
/bin/bash
install.sh
[root@localhost ~]# cat haproxy/files/install.sh
#!/bin/bash
rm -rf /etc/yum.repos.d/*
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-$(awk -F '"' 'NR==5{print $2}' /etc/os-release).repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
yum -y install make gcc pcre-devel bzip2-devel openssl-devel systemd-devel
useradd -r -M -s /sbin/nologin haproxy
cd /usr/src/haproxy-${version}
make clean && \
make TARGET=linux-glibc \
USE_OPENSSL=1 \
USE_ZLIB=1 \
USE_PCRE=1 \
USE_SYSTEMD=1 && \
make install PREFIX=/usr/local/haproxy && \
cp haproxy /usr/sbin/
echo 'net.ipv4.ip_nonlocal_bind = 1' >> /etc/sysctl.conf
echo 'net.ipv4.ip_forward = 1' >> /etc/sysctl.conf
mkdir -p /usr/local/haproxy/conf
yum -y remove make gcc gcc-c++ && \
rm -rf /tmp/* /var/cache/*
?做镜像
[root@localhost ~]# docker build -t yangyonghu/haproxy:v0.3 haproxy/
Sending build context to Docker daemon 1.754MB
Step 1/10 : FROM centos
---> 5d0da3dc9764
Step 2/10 : ENV version 1.7.8
---> Running in affae3ffac91
Removing intermediate container affae3ffac91
---> 139159f97ad8
Step 3/10 : ENV PATH /usr/local/harpoxy/sbin:$PATH
---> Running in ca335770ef74
Removing intermediate container ca335770ef74
---> d2d16324b306
Step 4/10 : ADD files/haproxy-${version}.tar.gz /usr/src/
---> 8300658bbf39
Step 5/10 : ADD files/install.sh /tmp/
---> 31bf0c1dd3e3
Step 6/10 : ADD files/entrypoint.sh /
---> 7b6b4d3400f6
Step 7/10 : EXPOSE 8189 80
---> Running in 5858d95a4a58
Removing intermediate container 5858d95a4a58
---> 722c7a2eaecb
Step 8/10 : RUN ["/bin/bash","-c","/tmp/install.sh"]
---> b2e87962da48
Step 9/10 : WORKDIR /usr/local/haproxy/
---> Running in b22715a19eee
Removing intermediate container b22715a19eee
---> d6fa8993457f
Step 10/10 : CMD ["entrypoint.sh"]
---> Running in 5096deab9936
Removing intermediate container 5096deab9936
---> 2d2ae019decf
Successfully built 2d2ae019decf
Successfully tagged yangyonghu/haproxy:v0.3
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
yangyonghu/haproxy v0.3 2d2ae019decf 2 minutes ago 240MB
yangyonghu/apache v0.5 677843bb4e15 3 days ago 703MB
yangyonghu/nginx v0.2 2a83aeba09ed 8 days ago 550MB
busybox latest d23834f29b38 12 days ago 1.24MB
centos latest 5d0da3dc9764 2 months ago 231MB
创建一个容器来运行haproxy镜像
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
yangyonghu/haproxy v0.3 d75fa67c9f17 5 minutes ago 399MB
yangyonghu/apache v0.5 677843bb4e15 3 days ago 703MB
yangyonghu/nginx v0.2 2a83aeba09ed 8 days ago 550MB
busybox latest d23834f29b38 12 days ago 1.24MB
centos latest 5d0da3dc9764 2 months ago 231MB
[root@localhost ~]# docker run -dit --name haproxy -v /config/:/tmp -p 80:80 -p 8189:8189 d75fa67c9f17
ded46827fd7c4f590a80f52131065d8dc0b8bd02ddc90175dfabe1c81d59cf09
[root@localhost ~]# docker exec -it haproxy /bin/bash
[root@ded46827fd7c haproxy]# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
LISTEN 0 128 0.0.0.0:8189 0.0.0.0:*
[root@ded46827fd7c haproxy]# ip a
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
15: eth0@if16: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:42:c0:a8:58:01 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 192.168.88.1/24 brd 192.168.88.255 scope global eth0
valid_lft forever preferred_lft forever
另起终端查看主机上的端口号
[root@localhost ~]# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 0.0.0.0:8189 0.0.0.0:*
LISTEN 0 128 0.0.0.0:111 0.0.0.0:*
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 128 [::]:8189 [::]:*
LISTEN 0 128 [::]:111 [::]:*
LISTEN 0 128 [::]:80 [::]:*
LISTEN 0 128 [::]:22 [::]:* 创建两个新的容器使用apache镜像来测试haproxy
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
yangyonghu/haproxy v0.3 d75fa67c9f17 9 minutes ago 399MB
yangyonghu/apache v0.5 677843bb4e15 3 days ago 703MB
yangyonghu/nginx v0.2 2a83aeba09ed 8 days ago 550MB
busybox latest d23834f29b38 12 days ago 1.24MB
centos latest 5d0da3dc9764 2 months ago 231MB
[root@localhost ~]# docker run -dit --name httpd --rm 677843bb4e15
46a043a66ce7353e7c58d207ea6f9c9d8f4e432763afc05de5c707ff340e991d
[root@localhost ~]# docker exec -it httpd /bin/bash
[root@46a043a66ce7 src]# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
[root@46a043a66ce7 src]# ip a
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
17: eth0@if18: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:42:c0:a8:58:02 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 192.168.88.2/24 brd 192.168.88.255 scope global eth0
valid_lft forever preferred_lft forever
[root@46a043a66ce7 src]# vi /usr/local/apache/htdocs/index.html
[root@46a043a66ce7 src]# cat /usr/local/apache/htdocs/index.html
<html><body><h1>RS1</h1></body></html>
[root@46a043a66ce7 src]#
第二个
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
yangyonghu/haproxy v0.3 d75fa67c9f17 13 minutes ago 399MB
yangyonghu/apache v0.5 677843bb4e15 3 days ago 703MB
yangyonghu/nginx v0.2 2a83aeba09ed 8 days ago 550MB
busybox latest d23834f29b38 12 days ago 1.24MB
centos latest 5d0da3dc9764 2 months ago 231MB
[root@localhost ~]# docker run -dit --name apache --rm 677843bb4e15
de053e2dc3055614936ccdbd61158fdea33818e44a064e00e01d3dbc0c3c938f
[root@localhost ~]# docker exec -it apache /bin/bash
[root@de053e2dc305 src]# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
[root@de053e2dc305 src]# ip a
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
19: eth0@if20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:42:c0:a8:58:03 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 192.168.88.3/24 brd 192.168.88.255 scope global eth0
valid_lft forever preferred_lft forever
[root@de053e2dc305 src]# vi /usr/local/apache/htdocs/index.html
[root@de053e2dc305 src]# cat /usr/local/apache/htdocs/index.html
<html><body><h1>RS2</h1></body></html>
访问页面做测试
