Explicitly set concourse version in compose/script

Signed-off-by: Toby Lorne <[email protected]>

docker-compose.yml

@@ -10,7 +10,7 @@ services:
  PGDATA: /database
 
  concourse:
- image: concourse/concourse
+ image: concourse/concourse:6.2
  command: web
  privileged: true
  depends_on: [concourse-db]

keys/generate

@@ -4,11 +4,11 @@ set -eu
 cd $(dirname $0)
 
 if [[ ! -d "web" ]] && [[ ! -d "worker" ]]; then
- docker run --rm -v $PWD/web:/keys concourse/concourse \
+ docker run --rm -v $PWD/web:/keys concourse/concourse:6.2 \
  generate-key -t rsa -f /keys/session_signing_key
- docker run --rm -v $PWD/web:/keys concourse/concourse \
+ docker run --rm -v $PWD/web:/keys concourse/concourse:6.2 \
  generate-key -t ssh -f /keys/tsa_host_key
- docker run --rm -v $PWD/worker:/keys concourse/concourse \
+ docker run --rm -v $PWD/worker:/keys concourse/concourse:6.2 \
  generate-key -t ssh -f /keys/worker_key
 
  cp ./worker/worker_key.pub ./web/authorized_worker_keys