Merge pull request #2675 from aledbf/add_wait_to_gateway

fix(gateway): wait until radosgw is accessible

Author: carmstrong

deisctl/units/deis-store-gateway.service

@@ -7,6 +7,7 @@ TimeoutStartSec=20m
 ExecStartPre=/bin/sh -c "IMAGE=`/run/deis/bin/get_image /deis/store-gateway` && docker history $IMAGE >/dev/null 2>&1 || docker pull $IMAGE"
 ExecStartPre=/bin/sh -c "docker inspect deis-store-gateway >/dev/null 2>&1 && docker rm -f deis-store-gateway || true"
 ExecStart=/bin/sh -c "IMAGE=`/run/deis/bin/get_image /deis/store-gateway` && docker run --name deis-store-gateway -h deis-store-gateway --rm -e HOST=$COREOS_PRIVATE_IPV4 -e EXTERNAL_PORT=8888 -p 8888:8888 $IMAGE"
+ExecStartPost=/bin/sh -c "until (echo 'Waiting for ceph gateway on 8888/tcp...' && curl -sSL http://localhost:8888|grep -e '<ID>anonymous</ID><DisplayName></DisplayName>' >/dev/null 2>&1); do sleep 1; done"
 ExecStopPost=-/usr/bin/docker rm -f deis-store-gateway
 Restart=on-failure
 RestartSec=5