Pipeline kill process at port

[Nicolas Frega]

I have this simple pipelines script:

 image: node:6.9.4

pipelines:
 default:
 - step:
 caches:
 - node
 script: # Modify the commands below to build your repository.
 - npm install -g truffle
 - npm install -g ganache-cli
 - npm install
 - npm run lint
 - npm run solium
 - npm run ganache 
 - sleep 5
 - truffle migrate
 - truffle test
 - su kill `su lsof -t -i:9545`
 - npm run coverage

 Can't get the su kill command to pass:

+ su kill `su lsof -t -i:9545`

su: invalid option -- 't'

Usage: su [options] [LOGIN]

Options: -c, --command COMMAND pass COMMAND to the invoked shell

 -h, --help display this help message and exit

 -, -l, --login make the shell a login shell

 -m, -p, --preserve-environment do not reset environment variables, and keep the same shell

 -s, --shell SHELL use SHELL instead of the default in passwd

No passwd entry for user 'kill'

Any ideas? 

[Philip Hodder]

Can you try the following?

- apt-get install -y lsof
- kill `lsof -t -i:9545`

Out of curiosity, why do you need to the close the port here? (Rather than letting the build teardown handle it.)