undeploy all apps from tomcat using tomcat-manager. One liner! Power of pipes!

tomcat-undeploy-all.md

Command

curl --user user:pass -s https://tomcatHost/manager/text/list | tail -n+2  | cut -d':' -f1 | grep -v "manager" | xargs -L1 -I% curl --user user:pass -s https://tomcatHost/manager/text/undeploy?path=%

Explanation

• curl --user user:pass -s https://tomcatHost/manager/text/list get list of apps

OK - Listed applications for virtual host localhost
/develop:running:0:develop
/feature-actuator:running:0:feature-actuator
/manager:running:0:manager

• tail -n+2 remove first line

/develop:running:0:develop
/feature-actuator:running:0:feature-actuator
/manager:running:0:manager

• cut -d':' -f1 get context path - first block before colon /develop:running:0:develop. -d':' defines colon separator. -f1 first column.

/develop
/feature-actuator
/manager

• grep -v "manager" keep manager. -v inverts grep

/develop
/feature-actuator

• xargs -L1 -I% curl --user user:pass -s https://tomcatHost/manager/text/undeploy?path=% pass result to curl to undeploy each of resulting contexts. -L1 to call curl for each line. -I% to have a % placeholder

in the same way - update all docker images:
docker images | grep -v REPO | cut -d' ' -f1 | xargs -L1 docker pull