02.使用pip安装supervisord

---

title: 02-使用pip安装
order: 2

icon: lightbulb

说明：1.通过python-pip安装的是最新版的supervisor，该方式安装的需要手动配置主进程配置文件和子进程配置文件。

2.也可以通过yum安装

1.启动一台基础镜像为centos7的容器

[root@172-0-110-100 ~]# docker run -itd --name supervisord  --privileged=true  centos:7 /usr/sbin/init
Unable to find image 'centos:7' locally
7: Pulling from library/centos
2d473b07cdd5: Pull complete 
Digest: sha256:9d4bcbbb213dfd745b58be38b13b996ebb5ac315fe75711bd618426a630e0987
Status: Downloaded newer image for centos:7
4cbc1518193f229d6c72d28e866dd8fcbad6b152c8ab30c8a0d75d377585a877
[root@172-0-110-100 ~]# docker ps
CONTAINER ID   IMAGE      COMMAND       CREATED          STATUS          PORTS     NAMES
4cbc1518193f   centos:7   "/bin/bash"   16 seconds ago   Up 14 seconds             supervisord

2.容器下安装python工具

[root@172-0-110-100 ~]# docker exec -it supervisord bash
[root@4cbc1518193f /]# yum install wget -y
[root@4cbc1518193f /]# rm -rf /etc/yum.repos.d/*
[root@4cbc1518193f /]# wget http://mirrors.aliyun.com/repo/Centos-7.repo -O /etc/yum.repos.d/Centos-7.repo
[root@4cbc1518193f /]# yum -y install epel-release
[root@4cbc1518193f /]# yum -y install python-pip

3.安装supervisord工具

## 使用pip命令安装supervisor工具
[root@4cbc1518193f /]# pip install supervisor 
Collecting supervisor
  Downloading https://files.pythonhosted.org/packages/2c/7a/0ad3973941590c040475046fef37a2b08a76691e61aa59540828ee235a6e/supervisor-4.2.5-py2.py3-none-any.whl (319kB)
    100% |################################| 327kB 19kB/s 
Requirement already satisfied (use --upgrade to upgrade): setuptools in /usr/lib/python2.7/site-packages (from supervisor)
Installing collected packages: supervisor
Successfully installed supervisor-4.2.5
You are using pip version 8.1.2, however version 23.2.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

## 查看supervisor是否安装成功，实质上是获取主配置文件里面的信息
[root@4cbc1518193f /]# echo_supervisord_conf
; Sample supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
;
; Notes:
;  - Shell expansion ("~" or "$HOME") is not supported.  Environment
;    variables can be expanded using this syntax: "%(ENV_HOME)s".
;  - Quotes around values are not supported, except in the case of
;    the environment= options as shown below.
;  - Comments must have a leading space: "a=b ;comment" not "a=b;comment".
;  - Command will be truncated if it looks like a config file comment, e.g.
;    "command=bash -c 'foo ; bar'" will truncate to "command=bash -c 'foo ".

………………

; The [include] section can just contain the "files" setting.  This
; setting can list multiple files (separated by whitespace or
; newlines).  It can also contain wildcards.  The filenames are
; interpreted as relative to this file.  Included files *cannot*
; include files themselves.

;[include]
;files = relative/directory/*.ini

4.编写主配置文件信息及创建子配置文件目录

[root@4cbc1518193f /]# echo_supervisord_conf > /etc/supervisord.conf
[root@4cbc1518193f /]# mkdir /etc/supervisord.d
[root@4cbc1518193f /]# ll /etc/ | grep super*
-rw-r--r--  1 root root  10607 Sep  5 03:18 supervisord.conf
drwxr-xr-x  2 root root      6 Sep  5 03:19 supervisord.d

主配置文件可根据需求修改，比如开放web管理等

5.启动服务

[root@4cbc1518193f /]# supervisord -c /etc/supervisord.conf 
[root@4cbc1518193f /]# ps -ef
UID          PID    PPID  C STIME TTY          TIME CMD
root           1       0  0 02:27 pts/0    00:00:00 /bin/bash
root         157       0  0 03:15 pts/1    00:00:00 bash
root         179       0  0 08:17 pts/2    00:00:00 bash
root         202       1  0 08:40 ?        00:00:00 /usr/bin/python2 /usr/bin/supervisord -c /etc/supervisord.conf
root         203     179  0 08:40 pts/2    00:00:00 ps -ef