Fix syntax errors, move clone script to a config map.

+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: k8s-bootstrap
+  namespace: kube-system
+data:
+  clone-start-of-day: |
+    #!/bin/sh
+    set -ex
+    GIT_SSH_COMMAND="ssh -i /tmp/cluster-ssh-key/ssh-private-key"
+---
 apiVersion: batch/v1
 kind: Job
 metadata:
@@ -17,36 +29,34 @@ spec:
         key: node-role.kubernetes.io/master
 
       volumes:
+        - name: k8s-bootstrap
+          configMap:
+            name: k8s-bootstrap
+            defaultMode: 755
         - name: git-storage
           emptyDir: {}
         - name: cluster-ssh-key
           secret:
-            name: cluster-ssh-key
+            secretName: cluster-ssh-key
             defaultMode: 0600
 
       initContainers:
         - name: clone-k8s-start-of-day
           image: bitnami/git
           volumeMounts:
+            - name: k8s-bootstrap
+              mountPath: /tmp/k8s-bootstrap
             - name: cluster-ssh-key
               mountPath: /tmp/cluster-ssh-key
             - name: git-storage
               mountPath: /tmp/git-storage
-          command: |
-            #!/bin/sh
-            set -ex
-            GIT_SSH_COMMAND="ssh -i /tmp/cluster-ssh-key/ssh-private-key"
-            git clone git@gitlab.brainfood.com:brainfood/k8s-start-of-day.git /tmp/git-storage/k8s-start-of-day
-
+          command: ["/tmp/k8s-bootstrap/clone-start-of-day"]
 
       containers:
         - name: show-status
           image: bash
-          command: |
-            #!/bin/sh
-            set -ex
-            ls -al /tmp/git-storage
+          command: ["bash", "-ex", "ls -l /tmp/git-storage"]
           volumeMounts:
             - name: git-storage
               mountPath: /tmp/git-storage
-
+---