继 docker安装完jenkins 后 更新jenkins 无权限

docker 中Jenkins更新

1.以root用户进入jenkins容器

docker exec -it -u root ContainerId bash

2.在容器中下载jenkins的最新war包

wget http://mirrors.jenkins.io/war/latest/jenkins.war

3、发现会报如下错误

--2020-04-09 06:43:09--  http://mirrors.jenkins.io/war/latest/jenkins.war
Resolving mirrors.jenkins.io (mirrors.jenkins.io)... 52.202.51.185
Connecting to mirrors.jenkins.io (mirrors.jenkins.io)|52.202.51.185|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://ftp-chi.osuosl.org/pub/jenkins/war/2.230/jenkins.war [following]
--2020-04-09 06:43:12--  http://ftp-chi.osuosl.org/pub/jenkins/war/2.230/jenkins.war
Resolving ftp-chi.osuosl.org (ftp-chi.osuosl.org)... 64.50.236.52, 2600:3402:200:227::2
Connecting to ftp-chi.osuosl.org (ftp-chi.osuosl.org)|64.50.236.52|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 66285288 (63M) [application/x-java-archive]
jenkins.war: Permission denied

Cannot write to ‘jenkins.war’ (Permission denied).

　　

这里需要进行2 步操作
1、对系统中jenkins 目录进行授权

chown -R 1000:1000 jenkins/

chown -R 777 jenkins/

2、需要在dosker 中进入安装时jenkins 挂载的目录  这里我的挂载目录是 “/var/jenkins_home”

cd /var/jenkins_home

3、在执行 下载最新war 包命令，这次就会顺利下载

wget http://mirrors.jenkins.io/war/latest/jenkins.war

--2020-04-09 06:43:32--  http://mirrors.jenkins.io/war/latest/jenkins.war
Resolving mirrors.jenkins.io (mirrors.jenkins.io)... 52.202.51.185
Connecting to mirrors.jenkins.io (mirrors.jenkins.io)|52.202.51.185|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://mirror.serverion.com/jenkins/war/2.230/jenkins.war [following]
--2020-04-09 06:43:39--  http://mirror.serverion.com/jenkins/war/2.230/jenkins.war
Resolving mirror.serverion.com (mirror.serverion.com)... 185.126.34.191
Connecting to mirror.serverion.com (mirror.serverion.com)|185.126.34.191|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 66285288 (63M)
Saving to: ‘jenkins.war’

jenkins.war                    100%[====================================================>]  63.21M  9.90MB/s    in 6.7s

2020-04-09 06:43:46 (9.43 MB/s) - ‘jenkins.war’ saved [66285288/66285288]

　　

4.查看容器中jenkins war包的位置，并备份原来的war包

whereis jenkins
cd /usr/share/jenkins
cp jenkins.war jenkinsBAK.war

5.将/var/jenkins_home下的包cp到/usr/share/jenkins下覆盖

cp /var/jenkins_home/jenkins.war /usr/share/jenkins/

6.退出容器并重启

exit
docker restart ContainerName/ContainerId

参照地址：https://www.cnblogs.com/wucaiyun1/p/11641658.html