From 93e1977d31a171e76072ce363dbe9180ba9d6a83 Mon Sep 17 00:00:00 2001
From: erthalion <9erthalion6@gmail.com>
Date: Fri, 21 Dec 2018 10:55:18 +0100
Subject: [PATCH] Make postgres container access more obvious

---
 pkg/cluster/k8sres.go            | 3 ++-
 pkg/util/constants/kubernetes.go | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkg/cluster/k8sres.go b/pkg/cluster/k8sres.go
index 78556d0d6..6a3a052bd 100644
--- a/pkg/cluster/k8sres.go
+++ b/pkg/cluster/k8sres.go
@@ -919,7 +919,8 @@ func addShmVolume(podSpec *v1.PodSpec) {
 		},
 	})
 
-	mounts := append(podSpec.Containers[0].VolumeMounts,
+	pgIdx := constants.PostgresContainerIdx
+	mounts := append(podSpec.Containers[pgIdx].VolumeMounts,
 		v1.VolumeMount{
 			Name:      constants.ShmVolumeName,
 			MountPath: constants.ShmVolumePath,
diff --git a/pkg/util/constants/kubernetes.go b/pkg/util/constants/kubernetes.go
index 2604f124d..a4ea73e80 100644
--- a/pkg/util/constants/kubernetes.go
+++ b/pkg/util/constants/kubernetes.go
@@ -5,6 +5,7 @@ import "time"
 // General kubernetes-related constants
 const (
 	PostgresContainerName       = "postgres"
+	PostgresContainerIdx        = 0
 	K8sAPIPath                  = "/apis"
 	StatefulsetDeletionInterval = 1 * time.Second
 	StatefulsetDeletionTimeout  = 30 * time.Second