remove secret reference in ci file, add traefik wait loop

example_app/.drone.yml

@@ -135,8 +135,3 @@ volumes:
   - name: dockersock
     host:
       path: /var/run/docker.sock
-
----
-kind: secret
-name: gcp-credentials
-data: <GCP_ENCRYPTED_CREDENTIALS>

traefik/deploy_traefik.rb

@@ -1,3 +1,7 @@
+def get_traefik_ip
+  `HTTPS_PROXY=localhost:8888 kubectl -n traefik get services | grep traefik | grep pending | awk '{ print $4 }'`
+end
+
 if ENV['GCE_PROJECT'] && ENV['GCE_DOMAIN'] && ENV['DNS_EMAIL'] && ENV['GCE_REGION']
   if !File.exist?('traefik-service-account.json')
     puts "File traefik-service-account.json is missing"
@@ -28,6 +32,13 @@ if ENV['GCE_PROJECT'] && ENV['GCE_DOMAIN'] && ENV['DNS_EMAIL'] && ENV['GCE_REGIO
   system("envsubst < deployment_base.yml > deployment.yml")
   system("HTTPS_PROXY=localhost:8888 kubectl apply -f deployment.yml")
 
+  puts "Waiting for traefik load balancer's public ip address"
+  while !get_traefik_ip.match /[0-9]?[0-9]?[0-9]\.[0-9]?[0-9]?[0-9]\.[0-9]?[0-9]?[0-9]\.[0-9]?[0-9]?[0-9]/ do
+    puts "... still waiting"
+    sleep 5
+  end
+  puts "The public IP is #{get_traefik_ip}"
+  puts "You probably want to add it to your DNS config :    *.#{ENV['GCE_DOMAIN']}    A    #{get_traefik_ip}"
 else
   puts "Missing env vars, did you define GCE_PROJECT, GCE_DOMAIN, GCE_REGION and DNS_EMAIL ?"
   exit 1