memory tuning

docs/native.adoc

@@ -47,7 +47,7 @@ We use a profile because, you will see very soon, packaging the native image tak
 
 Create a native executable by once again opening the command palette and choose **Build Native Quarkus App**. This will execute `mvn clean package -Pnative` behind the scenes. The `-Pnative` argument selects the `native` maven profile which invokes the Graal compiler.
 
-This will take a minute or so to finish. Wait for it!
+**This will take about 3-4 minutes to finish. Wait for it!**
 
 [NOTE]
 ====
@@ -74,11 +74,11 @@ Notice the amazingly fast startup time:
 
 [source,none,role="copypaste"]
 ----
-2019-03-07 18:34:16,642 INFO  [io.quarkus] (main) Quarkus 0.17.0 started in 0.004s. Listening on: http://127.0.0.1:8080
-2019-03-07 18:34:16,643 INFO  [io.quarkus] (main) Installed features: [cdi, resteasy]
+2019-07-10 04:04:11,817 INFO  [io.quarkus] (main) Quarkus 0.18.0 started in 0.015s. Listening on: http://[::]:8080
+2019-07-10 04:04:11,818 INFO  [io.quarkus] (main) Installed features: [agroal, cdi, jdbc-h2, narayana-jta, resteasy]
 ----
 
-That's 4 milliseconds. A _mere 4000 nanoseconds_. 
+That's 15 milliseconds to start up.
 
 And extremely low memory usage as reported by the Linux `ps` utility. While the app is running, open another Terminal (click the `+` button on the terminal tabs line) and run:
 

files/stack.imagestream.yaml

@@ -0,0 +1,17 @@
+apiVersion: image.openshift.io/v1
+kind: ImageStream
+metadata:
+  name: quarkus-stack
+  namespace: openshift
+spec:
+  tags:
+  - annotations:
+      description: Quarkus stack for Java and CodeReady Workspaces
+      iconClass: icon-java
+      supports: java
+      tags: builder,java
+      version: "1.0"
+    from:
+      kind: DockerImage
+      name: docker.io/schtool/che-quarkus-odo:latest
+    name: "1.0"

files/stack.json

@@ -1,5 +1,5 @@
 {
-    "name": "Quarkus - Java, CodeReady, odo",
+    "name": "Quarkus Java, CodeReady, odo",
     "description": "Java JDK Stack for Quarkus Apps",
     "scope": "general",
     "workspaceConfig": {
@@ -7,7 +7,7 @@
         "default": {
           "recipe": {
             "type": "dockerimage",
-            "content": "schtool/che-quarkus-odo:latest"
+            "content": "image-registry.openshift-image-registry.svc:5000/openshift/quarkus-stack:1.0"
           },
           "machines": {
             "dev-machine": {
@@ -38,7 +38,7 @@
   
               ],
               "attributes": {
-                "memoryLimitBytes": "3221225472"
+                "memoryLimitBytes": "5368709120"
               }
             }
           }

files/workspace.json

@@ -0,0 +1,94 @@
+{
+      "commands": [
+        {
+          "commandLine": "mvn verify -f ${current.project.path}",
+          "name": "Run Quarkus Tests",
+          "type": "mvn",
+          "attributes": {
+            "goal": "Test",
+            "previewUrl": ""
+          }
+        },
+        {
+          "commandLine": "mvn clean compile quarkus:dev -f ${current.project.path}",
+          "name": "Build and Run Locally",
+          "type": "custom",
+          "attributes": {
+            "goal": "Run",
+            "previewUrl": "${server.8080/tcp}"
+          }
+        },
+        {
+          "commandLine": "MAVEN_OPTS=\"-Xmx1024M -Xss128M -XX:MetaspaceSize=512M -XX:MaxMetaspaceSize=1024M -XX:+CMSClassUnloadingEnabled\" mvn -f ${current.project.path} clean package -Pnative -DskipTests",
+          "name": "Build Native Quarkus App",
+          "type": "custom",
+          "attributes": {
+            "goal": "Package",
+            "previewUrl": ""
+          }
+        },
+        {
+          "commandLine": "MAVEN_OPTS=\"-Xmx1024M -Xss128M -XX:MetaspaceSize=512M -XX:MaxMetaspaceSize=1024M -XX:+CMSClassUnloadingEnabled\" mvn -f ${current.project.path} clean package -DskipTests",
+          "name": "Create Executable JAR",
+          "type": "custom",
+          "attributes": {
+            "goal": "Package",
+            "previewUrl": ""
+          }
+        },
+        {
+          "commandLine": "mvn clean compile quarkus:dev -Ddebug -f ${current.project.path}",
+          "name": "Debug Quarkus App",
+          "type": "custom",
+          "attributes": {
+            "goal": "Debug",
+            "previewUrl": "${server.8080/tcp}"
+          }
+        }
+      ],
+      "defaultEnv": "default",
+      "environments": {
+        "default": {
+          "recipe": {
+            "type": "dockerimage",
+            "content": "image-registry.openshift-image-registry.svc:5000/openshift/quarkus-stack:1.0"
+          },
+          "machines": {
+            "dev-machine": {
+              "servers": {
+                "5005/tcp": {
+                  "protocol": "http",
+                  "port": "5005",
+                  "attributes": {}
+                },
+                "8080/tcp": {
+                  "protocol": "http",
+                  "port": "8080",
+                  "attributes": {}
+                },
+                "8000/tcp": {
+                  "protocol": "http",
+                  "port": "8000",
+                  "attributes": {}
+                }
+              },
+              "volumes": {},
+              "installers": [
+                "org.eclipse.che.exec",
+                "org.eclipse.che.terminal",
+                "org.eclipse.che.ws-agent",
+                "org.eclipse.che.ls.java"
+              ],
+              "env": {},
+              "attributes": {
+                "memoryLimitBytes": "5368709120"
+              }
+            }
+          }
+        }
+      },
+      "name": "WORKSPACENAME",
+      "attributes": {},
+    "temporary": false,
+    "links": []
+  }

setup/load.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+TMP_PROJ="dummy-$RANDOM"
+oc new-project $TMP_PROJ
+oc create route edge dummy --service=dummy --port=8080 -n $TMP_PROJ
+ROUTE=$(oc get route dummy -o=go-template --template='{{ .spec.host }}' -n $TMP_PROJ)
+HOSTNAME_SUFFIX=$(echo $ROUTE | sed 's/^dummy-'${TMP_PROJ}'\.//g')
+oc delete project $TMP_PROJ
+MASTER_URL=$(oc whoami --show-server)
+CONSOLE_URL=$(oc whoami --show-console)
+MYDIR=`pwd`
+
+SSO_CHE_TOKEN=$(curl -s -d "username=admin&password=admin&grant_type=password&client_id=admin-cli" \
+        -X POST http://keycloak-che.${HOSTNAME_SUFFIX}/auth/realms/codeready/protocol/openid-connect/token | jq  -r '.access_token')
+
+for i in {1..50} ; do
+
+    TMPWORK=$(mktemp)
+    sed 's/WORKSPACENAME/WORKSPACE'${i}'/g' $MYDIR/../files/workspace.json > $TMPWORK
+
+    curl -X POST --header 'Content-Type: application/json' --header 'Accept: application/json' \
+    --header "Authorization: Bearer ${SSO_CHE_TOKEN}" -d @${TMPWORK} \
+    "http://codeready-che.${HOSTNAME_SUFFIX}/api/workspace?start-after-create=true"
+    rm -f $TMPWORK
+done

setup/preparelab.sh

@@ -182,6 +182,10 @@ spec:
     cheFlavor: codeready
     tlsSupport: false
     selfSignedCert: false
+    serverMemoryRequest: '2Gi'
+    serverMemoryLimit: '6Gi'
+
+
   database:
     externalDb: false
     chePostgresHostName: ''
@@ -217,6 +221,18 @@ oc get --export cm/custom -n che -o yaml | yq w - 'data.CHE_INFRA_KUBERNETES_PVC
 oc scale -n che deployment/codeready --replicas=0
 oc scale -n che deployment/codeready --replicas=1
 
+# Wait for che to be back up
+echo "Waiting for Che to come back up..."
+while [ 1 ]; do
+  STAT=$(curl -s -w '%{http_code}' -o /dev/null http://codeready-che.${HOSTNAME_SUFFIX}/dashboard/)
+  if [ "$STAT" = 200 ] ; then
+    break
+  fi
+  echo -n .
+  sleep 10
+done
+
+
 # workaround for Che Terminal timeouts
 # must be run from AWS bastion host
 
@@ -265,6 +281,7 @@ curl -X POST --header 'Content-Type: application/json' --header 'Accept: applica
 
 # MANUALLY set permissions according to
 # https://access.redhat.com/documentation/en-us/red_hat_codeready_workspaces/1.2/html/administration_guide/administering_workspaces#stacks
+# THEN
 
 # Scale the cluster
 WORKERCOUNT=$(oc get nodes|grep worker | wc -l)
@@ -275,6 +292,28 @@ if [ "$WORKERCOUNT" -lt 10 ] ; then
     done
 fi
 
+# Adjust cpu limits to 500/1500
+# oc patch -n che limitrange/che-core-resource-limits -p '' --type=merge
+
+# import stack image
+oc create -n openshift -f $MYDIR/../files/stack.imagestream.yaml
+oc import-image --all quarkus-stack -n openshift
+
+# Pre-create workspaces for users
+for i in {1..$USERCOUNT} ; do
+    SSO_CHE_TOKEN=$(curl -s -d "username=user${i}&password=pass${i}&grant_type=password&client_id=admin-cli" \
+        -X POST http://keycloak-che.${HOSTNAME_SUFFIX}/auth/realms/codeready/protocol/openid-connect/token | jq  -r '.access_token')
+
+    TMPWORK=$(mktemp)
+    sed 's/WORKSPACENAME/WORKSPACE'${i}'/g' $MYDIR/../files/workspace.json > $TMPWORK
+
+    curl -X POST --header 'Content-Type: application/json' --header 'Accept: application/json' \
+    --header "Authorization: Bearer ${SSO_CHE_TOKEN}" -d @${TMPWORK} \
+    "http://codeready-che.${HOSTNAME_SUFFIX}/api/workspace?start-after-create=true&namespace=user${i}"
+    rm -f $TMPWORK
+done
+
+
 # Install the strimzi operator for all namespaces
 cat <<EOF | oc apply -n openshift-marketplace -f -
 apiVersion: operators.coreos.com/v1