[dash0] chore: improve local k8s deployment

* remove deployment to two namespaces, we can resurrect that if we pick
  up
  https://linear.app/dash0/issue/ENG-951/make-the-deployment-topology-more-interesting
  again
* rename namespace from otel-demo-ns to otel-demo
* extract processing of values file into separate script
* add support for sending data to a configurable ingress URL via
  OTEL_EXPORTER_OTLP_ENDPOINT
* add support for using a custom values.yaml file via VALUES_YAML

Author: basti1302

kubernetes/local/.gitignore

@@ -1,3 +1 @@
-dash0-values.yaml
-ns1-values.yaml
-ns2-values.yaml
+dash0-otel-demo-local-k8s-values.yaml

kubernetes/local/create-values-yaml.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cd -P -- "$(dirname -- "$0")"
+
+source utils
+
+if [[ -n ${VALUES_YAML:-} ]]; then
+  echo "Using custom values yaml file: $VALUES_YAML"
+  cp $VALUES_YAML dash0-otel-demo-local-k8s-values.yaml
+else
+  echo "Creating dash0-otel-demo-local-k8s-values.yaml based on:"
+  echo "- $dash0_configuration_dir/demo/environments/aws/demo-eu-west-1-demo.yaml and"
+  echo "- $dash0_configuration_dir/demo/values.yaml"
+  echo "Set VALUES_YAML to use a custom values file."
+  echo
+  yq \
+    ". *= load(\"$dash0_configuration_dir/demo/environments/aws/demo-eu-west-1-demo.yaml\")" \
+    $dash0_configuration_dir/demo/values.yaml | \
+    yq --from-file dash0-otel-demo-local-k8s.yq > \
+    dash0-otel-demo-local-k8s-values.yaml
+
+  if [[ -n ${OTEL_EXPORTER_OTLP_ENDPOINT:-} ]]; then
+    echo "Using non-default reporting endpoint from environment variable"
+    echo "OTEL_EXPORTER_OTLP_ENDPOINT: $OTEL_EXPORTER_OTLP_ENDPOINT"
+    echo
+    yq -i ".opentelemetry-collector.config.exporters.otlp/dash0-dev.endpoint=\"$OTEL_EXPORTER_OTLP_ENDPOINT\" | del(.opentelemetry-collector.config.exporters.otlp/dash0-dev.auth) " dash0-otel-demo-local-k8s-values.yaml
+  else
+    echo "Reporting to $(yq '.opentelemetry-collector.config.exporters["otlp/dash0-dev"]'.endpoint dash0-otel-demo-local-k8s-values.yaml), set OTEL_EXPORTER_OTLP_ENDPOINT to report somewhere else."
+    echo
+  fi
+fi
+

kubernetes/local/cross-namespace-service-names.yaml

@@ -1,5 +1,6 @@
 .otelDemo.helm |
 .default.image.pullSecrets=[{"name": "regcred"}] |
 del(.opentelemetry-collector.config.exporters.otlp/dash0-prod) |
+del(.opentelemetry-collector.config.exporters.otlp/dash0-prod-pen-testing) |
 del(.opentelemetry-collector.config.service.pipelines.*.exporters.[] | select(. == "otlp/dash0-prod*") ) |
 .opentelemetry-collector.config.processors.resource.attributes[] |= select(.key == "cloud.account.id").value |= "012345678901"

kubernetes/local/dash0-one-ns.yq kubernetes/local/dash0-otel-demo-local-k8s.yq

@@ -11,35 +11,31 @@ git_pull_dash0_configuration
 trap switch_back_to_original_context EXIT
 switch_to_local_context
 
-refresh_image_pull_secret otel-demo-ns
+refresh_image_pull_secret otel-demo
 
 ./teardown.sh no-context-switch
 
 sleep 5
 
-yq \
-  ". *= load(\"$dash0_configuration_dir/demo/environments/aws/demo-eu-west-1-demo.yaml\")" \
-  $dash0_configuration_dir/demo/values.yaml | \
-  yq --from-file dash0-one-ns.yq > \
-  dash0-values.yaml
+./create-values-yaml.sh $dash0_configuration_dir
 
-helm install --namespace otel-demo-ns --create-namespace opentelemetry-demo-postgresql oci://registry-1.docker.io/bitnamicharts/postgresql --values postgres-values.yaml
+helm install --namespace otel-demo --create-namespace opentelemetry-demo-postgresql oci://registry-1.docker.io/bitnamicharts/postgresql --values postgres-values.yaml
 helm install \
-  --namespace otel-demo-ns \
+  --namespace otel-demo \
   --create-namespace \
   opentelemetry-demo \
   open-telemetry/opentelemetry-demo  \
-  --values dash0-values.yaml
-kubectl apply --namespace otel-demo-ns -f postgres-service.yaml
+  --values dash0-otel-demo-local-k8s-values.yaml
+kubectl apply --namespace otel-demo -f postgres-service.yaml
 
-kubectl cp ../../src/ffspostgres/init-scripts/10-ffs_schema.sql --namespace otel-demo-ns opentelemetry-demo-postgresql-0:/tmp/
-kubectl cp ../../src/ffspostgres/init-scripts/20-ffs_data.sql --namespace otel-demo-ns opentelemetry-demo-postgresql-0:/tmp/
-kubectl exec --namespace otel-demo-ns opentelemetry-demo-postgresql-0 -- psql postgresql://ffs:ffs@localhost/ffs -a -f /tmp/10-ffs_schema.sql
-kubectl exec --namespace otel-demo-ns opentelemetry-demo-postgresql-0 -- psql postgresql://ffs:ffs@localhost/ffs -a -f /tmp/20-ffs_data.sql
+kubectl cp ../../src/ffspostgres/init-scripts/10-ffs_schema.sql --namespace otel-demo opentelemetry-demo-postgresql-0:/tmp/
+kubectl cp ../../src/ffspostgres/init-scripts/20-ffs_data.sql --namespace otel-demo opentelemetry-demo-postgresql-0:/tmp/
+kubectl exec --namespace otel-demo opentelemetry-demo-postgresql-0 -- psql postgresql://ffs:ffs@localhost/ffs -a -f /tmp/10-ffs_schema.sql
+kubectl exec --namespace otel-demo opentelemetry-demo-postgresql-0 -- psql postgresql://ffs:ffs@localhost/ffs -a -f /tmp/20-ffs_data.sql
 
 echo waiting for the frontend and frontendproxy pod to become ready
 sleep 5
-kubectl wait --namespace otel-demo-ns --for=condition=ready pod -l app.kubernetes.io/component=frontendproxy --timeout 10s
-kubectl wait --namespace otel-demo-ns --for=condition=ready pod -l app.kubernetes.io/component=frontend --timeout 20s
+kubectl wait --namespace otel-demo --for=condition=ready pod -l app.kubernetes.io/component=frontendproxy --timeout 10s
+kubectl wait --namespace otel-demo --for=condition=ready pod -l app.kubernetes.io/component=frontend --timeout 20s
 ./port-forward.sh
 

kubernetes/local/deploy-two-namespaces.sh

@@ -2,5 +2,5 @@
 
 set -euo pipefail
 
-kubectl port-forward --namespace otel-demo-ns service/opentelemetry-demo-frontendproxy 8080:8080
+kubectl port-forward --namespace otel-demo service/opentelemetry-demo-frontendproxy 8080:8080
 

kubernetes/local/deploy.sh

@@ -14,15 +14,7 @@ if [[ ${1:-} != "no-context-switch" ]]; then
 fi
 
 # tear down things installed by deploy.sh
-helm uninstall --namespace otel-demo-ns --ignore-not-found opentelemetry-demo-postgresql
-helm uninstall --namespace otel-demo-ns --ignore-not-found opentelemetry-demo
-kubectl delete --namespace otel-demo-ns --ignore-not-found -f postgres-service.yaml
-kubectl delete --namespace otel-demo-ns --ignore-not-found -f postgres-service-two-namespaces.yaml
-
-# tear down things installed by deploy-two-namespaces.sh
-helm uninstall --namespace otel-demo-ns1 --ignore-not-found opentelemetry-demo-ns1
-helm uninstall --namespace otel-demo-ns2 --ignore-not-found opentelemetry-demo-ns2
-helm uninstall --namespace otel-demo-ns1 --ignore-not-found opentelemetry-demo-postgresql
-kubectl delete --namespace otel-demo-ns1 --ignore-not-found -f postgres-service.yaml
-kubectl delete --ignore-not-found -f cross-namespace-service-names.yaml
+helm uninstall --namespace otel-demo --ignore-not-found opentelemetry-demo-postgresql
+helm uninstall --namespace otel-demo --ignore-not-found opentelemetry-demo
+kubectl delete --namespace otel-demo --ignore-not-found -f postgres-service.yaml