feat: ./hack/launch-local-ca.sh for dev prod

gardener · Nov 21, 2024 · 5cb92cf · 5cb92cf
1 parent db938d5
commit 5cb92cf
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diff --git a/cluster-autoscaler/.gitignore b/cluster-autoscaler/.gitignore
@@ -12,3 +12,5 @@ Session.vim
 .netrwhist
 .vscode
 ./integration/logs
+.env
+integration/logs/autoscaler_processs.log
diff --git a/cluster-autoscaler/hack/launch-local-ca.sh b/cluster-autoscaler/hack/launch-local-ca.sh
@@ -0,0 +1,58 @@
+#!/usr/bin/env zsh
+set -eo pipefail
+
+echoErr() { echo "$@" 1>&2; }
+
+
+CURRENT_DIR=$(pwd)
+PROJECT_ROOT="${CURRENT_DIR}"
+
+if  ! command -v gum &>/dev/null; then
+  echoErr "gum not installed. Kindly first install gum (https://github.com/charmbracelet/gum) using relevant procedure for your OS"
+  exit 1
+fi
+
+devEnvFile="$PROJECT_ROOT/.env"
+if [[ ! -f "$devEnvFile" ]]; then
+  echoErr  "ERROR: $devEnvFile is not created. Kindly execute ./hack/local_setup.sh before running this script."
+  exit 2
+fi
+
+source "$devEnvFile"
+
+if [[ ! -f "$CONTROL_KUBECONFIG" ]]; then
+  echoErr  "ERROR: Control Cluster kubeconfig is not at expected path $CONTROL_KUBECONFIG. Please ensure that ./hack/local_setup.sh is run correctly."
+  exit 3
+fi
+
+if [[ -z "$GARDEN_PROJECT" ]]; then
+  echoErr  "ERROR: GARDEN_PROJECT env-var not set. Please ensure that ./hack/local_setup.sh is run correctly and check $devEnvFile.."
+  exit 4
+fi
+
+if [[ -z "$SHOOT" ]]; then
+  echoErr  "ERROR: SHOOT env-var not set. Please ensure that ./hack/local_setup.sh is run correctly and check $devEnvFile."
+  exit 5
+fi
+
+if [[ ! -f "main.go" ]]; then
+  echoErr "ERROR: CA main.go missing in current dir. Please ensure you are in the right cluster-autoscaler dir."
+  exit 6
+fi
+
+echo "NOTE: This script generates a /tmp/local-ca.sh which launches the local CA with the same configuration as that of the remote CA in the configured shoot's control plane"
+
+echo "Targeting control plane of sap-landscape-dev:$GARDEN_PROJECT:$SHOOT"
+gardenctl target --garden sap-landscape-dev --project "$GARDEN_PROJECT" --shoot aw --control-plane
+caDeploJsonPath="/tmp/ca-deploy.json"
+kubectl get deploy cluster-autoscaler -ojson > "$caDeploJsonPath"
+echo "Downloaded CA Deployment JSON YAML into $caDeploJsonPath"
+
+commandArgs=$(jq -r '.spec.template.spec.containers[0].command[]' "$caDeploJsonPath" | sed 1d | sed /--kubeconfig/d | tr '\n' ' ')
+export CONTROL_KUBECONFIG="$CONTROL_KUBECONFIG"
+export CONTROL_NAMESPACE="$CONTROL_NAMESPACE"
+export TARGET_KUBECONFIG="$TARGET_KUBECONFIG"
+launchCommand="go run main.go --kubeconfig=$TARGET_KUBECONFIG $commandArgs 2>&1 | tee /tmp/ca.log"
+gum confirm "Launch local CA using following command: '$launchCommand' ?" && echo "$launchCommand" && eval "$launchCommand"
+
+
diff --git a/cluster-autoscaler/hack/local_setup.sh b/cluster-autoscaler/hack/local_setup.sh
@@ -48,6 +48,11 @@ GARDEN_NAMESPACE=garden
 gardenctl target --garden sap-landscape-dev
 eval $(gardenctl kubectl-env bash)
 
+if [[ ! -d "$KUBECONFIG_PATH" ]]; then
+  mkdir -p "$KUBECONFIG_PATH"
+  echo "Created dirs $KUBECONFIG_PATH"
+fi
+
 #setting kubeconfig of control cluster
 
 echo "$(kubectl create -f $PROJECT_ROOT/hack/kubeconfig-request.json --raw /apis/core.gardener.cloud/v1beta1/namespaces/${GARDEN_NAMESPACE}/shoots/${SEED}/adminkubeconfig | jq -r ".status.kubeconfig" | base64 -d)" >  $KUBECONFIG_PATH/kubeconfig_control.yaml
@@ -63,3 +68,16 @@ echo "kubeconfigs have been downloaded and kept at /dev/kubeconfigs/kubeconfig_<
 export CONTROL_NAMESPACE=shoot--$PROJECT--$SHOOT
 export CONTROL_KUBECONFIG=$KUBECONFIG_PATH/kubeconfig_control.yaml
 export TARGET_KUBECONFIG=$KUBECONFIG_PATH/kubeconfig_target.yaml
+
+devEnvFile="$PROJECT_ROOT/.env"
+cat << EOF >"$devEnvFile"
+CONTROL_NAMESPACE="$CONTROL_NAMESPACE"
+CONTROL_KUBECONFIG="$CONTROL_KUBECONFIG"
+TARGET_KUBECONFIG="$TARGET_KUBECONFIG"
+PROJECT_ROOT="$PROJECT_ROOT"
+GARDEN_PROJECT="$PROJECT"
+GARDEN_PROJECT_NAMESPACE="$NAMESPACE"
+SHOOT="$SHOOT"
+EOF
+
+echo "Wrote $devEnvFile"