fix: k8s_edit image tag replacement

Author: andhreljaKern

k8s/edit.sh

@@ -21,9 +21,11 @@ done
 kubectl config set-context --current --namespace=$KUBERNETES_NAMESPACE
 echo "Context set to namespace: \"$KUBERNETES_NAMESPACE\""
 
-KUBERNETES_POD_EXISTING_IMAGE=$(kubectl get pod --output json \
-    --selector app=${KUBERNETES_DEPLOYMENT_NAME} \
-    | jq -r '.items[0] | .spec.containers[0].image')
+grep ${AZURE_CONTAINER_REGISTRY}/${KUBERNETES_DEPLOYMENT_NAME} $KUBERNETES_MANIFEST_FILE_PATH | while read -r line ; do
+    KUBERNETES_POD_EXISTING_TAG=$(echo $line | sed 's|image: ||g' | cut -d ':' -f 2)
+done
+
+KUBERNETES_POD_EXISTING_IMAGE="${AZURE_CONTAINER_REGISTRY}/${KUBERNETES_DEPLOYMENT_NAME}:${KUBERNETES_POD_EXISTING_TAG}"
 KUBERNETES_POD_NEW_IMAGE="${AZURE_CONTAINER_REGISTRY}/${KUBERNETES_DEPLOYMENT_NAME}:${IMAGE_TAG}"
 
 echo "$(sed "s|${KUBERNETES_POD_EXISTING_IMAGE}|${KUBERNETES_POD_NEW_IMAGE}|g" ${KUBERNETES_MANIFEST_FILE_PATH})" > $KUBERNETES_MANIFEST_FILE_PATH