basic blue-green argo rollout for subgraphs

Signed-off-by: Phil Prasek <[email protected]>

.scripts/k8s-up-bare.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+KUSTOMIZE_ENV="${1:-dev}"
+ROLLOUT_STRATEGY="$2"
+
+INFRA_ENV="${KUSTOMIZE_ENV}"
+SUBGRAPHS_ENV="${KUSTOMIZE_ENV}"
+ROUTER_ENV="${KUSTOMIZE_ENV}"
+
+if [[ -n "$ROLLOUT_STRATEGY" ]]; then
+  INFRA_ENV="${INFRA_ENV}"
+  SUBGRAPHS_ENV="${SUBGRAPHS_ENV}-${ROLLOUT_STRATEGY}"
+  ROUTER_ENV="${ROUTER_ENV}"
+fi
+
+echo "Using Kustomizations:"
+echo "- infra/${INFRA_ENV}/kustomization.yaml"
+echo "- subgraphs/${SUBGRAPHS_ENV}/kustomization.yaml"
+echo "- router/${ROUTER_ENV}/kustomization.yaml"
+
+kind --version
+
+if [ $(kind get clusters | grep -E 'kind') ]
+then
+  kind delete cluster --name kind
+fi
+kind create cluster --image kindest/node:v1.21.1 --config=clusters/kind-cluster.yaml --wait 5m

.scripts/k8s-up-flux.sh

@@ -1,20 +1,9 @@
 #!/bin/bash
 
-KUSTOMIZE_ENV="${1:-dev}"
-
-echo "Using ${KUSTOMIZE_ENV}/kustomization.yaml"
-
-kind --version
-
-if [ $(kind get clusters | grep -E 'kind') ]
-then
-  kind delete cluster --name kind
-fi
+source "$(dirname $0)/k8s-up-bare.sh"
 
 set -x
 
-kind create cluster --image kindest/node:v1.21.1 --config=clusters/kind-cluster.yaml --wait 5m
-
 flux install
 
 flux create source git k8s-graph-ops \
@@ -24,15 +13,15 @@ flux create source git k8s-graph-ops \
 flux create kustomization infra \
   --namespace=default \
   --source=GitRepository/k8s-graph-ops.flux-system \
-  --path="./infra/${KUSTOMIZE_ENV}" \
+  --path="./infra/${INFRA_ENV}" \
   --prune=true \
   --interval=1m \
   --validation=client
 
 flux create kustomization subgraphs \
   --namespace=default \
   --source=GitRepository/k8s-graph-ops.flux-system \
-  --path="./subgraphs/${KUSTOMIZE_ENV}" \
+  --path="./subgraphs/${SUBGRAPHS_ENV}" \
   --prune=true \
   --interval=1m \
   --validation=client
@@ -41,7 +30,7 @@ flux create kustomization router \
   --depends-on=infra \
   --namespace=default \
   --source=GitRepository/k8s-graph-ops.flux-system \
-  --path="./router/${KUSTOMIZE_ENV}" \
+  --path="./router/${ROUTER_ENV}" \
   --prune=true \
   --interval=1m \
   --validation=client

.scripts/k8s-up.sh

@@ -1,21 +1,11 @@
 #!/bin/bash
 
-KUSTOMIZE_ENV="${1:-dev}"
-
-echo "Using ${KUSTOMIZE_ENV}/kustomization.yaml"
-
-kind --version
-
-if [ $(kind get clusters | grep -E 'kind') ]
-then
-  kind delete cluster --name kind
-fi
-kind create cluster --image kindest/node:v1.21.1 --config=clusters/kind-cluster.yaml --wait 5m
+source "$(dirname $0)/k8s-up-bare.sh"
 
 # important: use a newer kubectl version that supports extended kustomize resources
-kubectl apply -k infra/$KUSTOMIZE_ENV
+kubectl apply -k infra/$INFRA_ENV
 
-kubectl apply -k subgraphs/$KUSTOMIZE_ENV
+kubectl apply -k subgraphs/$SUBGRAPHS_ENV
 
 echo waiting for nginx controller to start ...
 
@@ -29,7 +19,7 @@ code=1
 last=""
 until [[ $retry -le 0 || $code -eq 0 ]]
 do
-  result=$(kubectl apply -k router/$KUSTOMIZE_ENV 2>/dev/null)
+  result=$(kubectl apply -k router/$ROUTER_ENV 2>/dev/null)
   code=$?
 
   if [[ "$result" != "$last" ]]

Makefile

@@ -8,8 +8,7 @@ demo: k8s-up-dev smoke k8s-down
 demo-flux: k8s-up-flux-dev smoke k8s-down
 
 .PHONY: k8s-up
-k8s-up:
-	.scripts/k8s-up.sh
+k8s-up: k8s-up-dev
 
 .PHONY: k8s-up-dev
 k8s-up-dev:
@@ -24,8 +23,7 @@ k8s-up-prod:
 	.scripts/k8s-up.sh prod
 
 .PHONY: k8s-up-flux
-k8s-up-flux:
-	.scripts/k8s-up-flux.sh
+k8s-up-flux: k8s-up-flux-dev
 
 .PHONY: k8s-up-flux-dev
 k8s-up-flux-dev:
@@ -39,6 +37,36 @@ k8s-up-flux-stage:
 k8s-up-flux-prod:
 	.scripts/k8s-up-flux.sh prod
 
+.PHONY: k8s-up-bluegreen
+k8s-up-bluegreen: k8s-up-dev-bluegreen
+
+.PHONY: k8s-up-dev-bluegreen
+k8s-up-dev-bluegreen:
+	.scripts/k8s-up.sh dev bluegreen
+
+.PHONY: k8s-up-stage-bluegreen
+k8s-up-stage-bluegreen:
+	.scripts/k8s-up.sh stage bluegreen
+
+.PHONY: k8s-up-prod-bluegreen
+k8s-up-prod-bluegreen:
+	.scripts/k8s-up.sh prod bluegreen
+
+.PHONY: k8s-up-flux-bluegreen
+k8s-up-flux-bluegreen: k8s-up-flux-dev-bluegreen
+
+.PHONY: k8s-up-flux-dev-bluegreen
+k8s-up-flux-dev-bluegreen:
+	.scripts/k8s-up-flux.sh dev bluegreen
+
+.PHONY: k8s-up-flux-stage-bluegreen
+k8s-up-flux-stage-bluegreen:
+	.scripts/k8s-up-flux.sh stage bluegreen
+
+.PHONY: k8s-up-flux-prod-bluegreen
+k8s-up-flux-prod-bluegreen:
+	.scripts/k8s-up-flux.sh prod bluegreen
+
 .PHONY: query
 query:
 	.scripts/query.sh 80