Make note of docker-credential helper

[so0k]

In the instructions, after docker login, we should make note of the following:

cat ~/.docker/config.json
jq -r .auths[\"https://index.docker.io/v1/\"].auth ~/.docker/config.json | openssl base64 -d ; echo

for OSX, it is safer to do the following:

curl -Lo osxkeychain.tar.gz https://github.com/docker/docker-credential-helpers/releases/download/v0.3.0/docker-credential-osxkeychain-v0.3.0-amd64.tar.gz
tar -xf osxkeychain.tar.gz
ln -s $PWD/docker-credential-osxkeychain /usr/local/bin/docker-credential-osxkeychain

Change ~/.docker/config.json to tell docker to use credential store:

{
    "credsStore": "osxkeychain"
}

Tip, the way docker gets the credentials is:

echo "https://index.docker.io/v1/" | docker-credential-osxkeychain get