Set up GitHub deploy keys for Travis

See the Travis documentation for more information.

These commands should be run on the root of your project/repository.

Install Travis CLI locally:

gem install travis or brew install travis if on OSX

Generate a new SSH Key for GitHub access:

ssh-keygen -t rsa -b 4096 -f 'github_deploy_key' -N ''

Copy the contents of the public key and set as a deploy key on GitHub (example: https://github.com/<USER>/<REPOSITORY>/settings/keys)

cat github_deploy_key.pub

if you want to use travis-ci.com instead of .org, add --pro to the command. See the travis cli docs for more details.

travis login --pro --auto

Encrypt the GitHub deploy key

again, if you want to use travis-ci.com, add --pro to the command.
this will add two keys on your Travis dashboard, which you will use below
- $encrypted_xxxxxxxxxxxx_key
- $encrypted_xxxxxxxxxxxx_iv

travis encrypt-file --pro 'github_deploy_key'

Add the encoded deploy key to the GitHub repository

git add 'github_deploy_key.enc'

Add openssl line on your .travis.yml

replace $encrypted_xxxxxxxxxxxx_key and $encrypted_xxxxxxxxxxxx_iv with the output of travis encrypt-file
you can also do this automatically by running travis encrypt-file --add

before_install:
  - >-
    openssl aes-256-cbc 
    -K $encrypted_xxxxxxxxxxxx_key 
    -iv $encrypted_xxxxxxxxxxxx_iv 
    -in github_deploy_key.enc 
    -out github_deploy_key 
    -d
  - chmod 600 github_deploy_key
  - eval $(ssh-agent -s)
  - ssh-add github_deploy_key

Add the changes to .travis.yml to Git and push a new commit

git add '.travis.yml'

git commit -m 'chore: add github deploy key'

git push

brunodb3/travis.github.md

Set up GitHub deploy keys for Travis