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When initContainers defined on deployment, readinessProbe must not be generated #1283

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rareddy opened this issue Apr 24, 2018 · 13 comments
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When initContainers defined on deployment, readinessProbe must not be generated #1283

rareddy opened this issue Apr 24, 2018 · 13 comments
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cat/bug Bug which needs fixing

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@rareddy
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rareddy commented Apr 24, 2018

Description

if the template deployment.yml file in the fabric8 directory defines the initContainers the build process generates the liveness and readiness probes in generated openshift.yml and kubernetes.yml files which according to Kubernetes document here is not valid

https://kubernetes.io/docs/concepts/workloads/pods/init-containers/

Init Containers have all of the fields of an app Container. However, Kubernetes prohibits readinessProbe from being used because Init Containers cannot define readiness distinct from completion. This is enforced during validation.

Currently the deployment fails with error like
Failed to create DeploymentConfig from openshift.yml. io.fabric8.kubernetes.client.KubernetesClientException: Failure executing: POST at: https://192.168.42.122:8443/apis/apps.openshift.io/v1/namespaces/myproject/deploymentconfigs. Message: DeploymentConfig "booster-crud-spring-boot" is invalid: [spec.template.spec.initContainers[0].livenessProbe: Invalid value: core.Probe{Handler:core.Handler{Exec:(*core.ExecAction)(nil),

Info

  • f-m-p version : 3.5.38
  • Maven version (mvn -v) : 3.5.0

If it's a bug, how to reproduce :

kind: Deployment
metadata:
  name: ${project.artifactId}
spec:
  template:
    spec:
      volumes:
        - name: config-volume
          emptyDir:
            medium: Memory    
      containers:
        - env:
            - name: JAVA_OPTIONS
              value: "-Dspring.profiles.active=openshift"
          volumeMounts:
          - mountPath: /config
            name: config-volume              
      initContainers:
        - image: busybox
          name: dbmanager
          command: ['sh', '-c', 'echo myProperty=Boo_$DATASOURCE_NAME > /config/application.properties']
          volumeMounts:
          - mountPath: "/config"
            name: config-volume
@rareddy
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rareddy commented Apr 24, 2018

Looks like this is a generic case of #1178 not just spring-boot. If anyone give me code hint, I can submit a PR

@rohanKanojia rohanKanojia added the cat/bug Bug which needs fixing label Jul 13, 2018
@rohanKanojia
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@rhuss : Could you please provide some code pointers related to this? In my opinion, ResourceMojo and InitContainerHandler might be good places to look at.

@rhuss
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rhuss commented Jul 19, 2018

@rareddy @rohanKanojia actually the entry point is probably

fabric8-maven-plugin/enricher/api/src/main/java/io/fabric8/maven/enricher/api/AbstractHealthCheckEnricher.java

Lines 34 to 56 in d359ddd

public void addMissingResources(KubernetesListBuilder builder) {
builder.accept(new TypedVisitor<ContainerBuilder>() {
@Override
public void visit(ContainerBuilder container) {
if (!container.hasReadinessProbe()) {
Probe probe = getReadinessProbe(container);
if (probe != null) {
log.info("Adding readiness " + describe(probe));
container.withReadinessProbe(probe);
}
}
if (!container.hasLivenessProbe()) {
Probe probe = getLivenessProbe(container);
if (probe != null) {
log.info("Adding liveness " + describe(probe));
container.withLivenessProbe(probe);
}
}
}
});
}

Here every container in the list is instrumented with a health check, also for init containers. Not sure whether it can be detected within this visitor what kind of container it is. Also, I guess that health checks for side-car container might not make sense, too.

@nicolaferraro any idea how we could be more selective before adding readiness/liveness probes ?

@nicolaferraro
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Yes, the type is the same, so all containers are enriched, no matter their kind. Maybe we should visit at PodSpec level and distinguish the kind of container. Side-cars should be handled by #1202, so that only the main container is enriched by default. I've to change that PR, I can also try to remove initContainers from the list.

@rohanKanojia rohanKanojia mentioned this issue Jul 26, 2018
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@rohanKanojia rohanKanojia mentioned this issue Aug 8, 2018
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stale bot commented Oct 18, 2018

This issue has been automatically marked as stale because it has not had any activity since 90 days. It will be closed if no further activity occurs within 7 days. Thank you for your contributions!

@stale stale bot added the status/stale Issue/PR considered to be stale label Oct 18, 2018
@rohanKanojia
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I think This issue can be fixed via #1202 , but need to update that

@stale stale bot removed the status/stale Issue/PR considered to be stale label Oct 18, 2018
@wadeholler
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Any updates or temporary alternate direction here ?

@rohanKanojia
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@wadeholler : We're going to prioritize this, there is a PR already; just needs some refactoring

@rohanKanojia
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@rareddy : I think this issue is fixed. Could you please confirm on 4.0.0?

@djotanov
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Its still not fixed in 4.1

@rohanKanojia
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@djotanov : Umm, I just checked on one of the samples(spring-boot) using the fragment in src/main/fabric8. I couldn't reproduce the error:

~/work/repos/fabric8-maven-plugin/samples/spring-boot : $ mvn clean install fabric8:deploy
[INFO] Scanning for projects...
[INFO] 
[INFO] ------------< io.fabric8:fabric8-maven-sample-spring-boot >-------------
[INFO] Building Fabric8 Maven :: Sample :: Spring Boot Web 4.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.6.1:clean (default-clean) @ fabric8-maven-sample-spring-boot ---
[INFO] Deleting /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ fabric8-maven-sample-spring-boot ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/resources
[INFO] skip non existing resourceDirectory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/resources
[INFO] 
[INFO] --- fabric8-maven-plugin:4.1.0:resource (default) @ fabric8-maven-sample-spring-boot ---
[INFO] F8: Running generator spring-boot
[INFO] F8: spring-boot: Using Docker image fabric8/java-centos-openjdk8-jdk:1.5 as base / builder
[INFO] F8: using resource templates from /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/fabric8
[INFO] F8: fmp-service: Adding a default service 'fabric8-maven-sample-spring-boot' with ports [8080]
[INFO] F8: fmp-revision-history: Adding revision history limit to 2
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes/fabric8-maven-sample-spring-boot-service.yml resource
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes/fabric8-maven-sample-spring-boot-deployment.yml resource
[INFO] F8: using resource templates from /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/fabric8
[INFO] F8: fmp-service: Adding a default service 'fabric8-maven-sample-spring-boot' with ports [8080]
[INFO] F8: fmp-revision-history: Adding revision history limit to 2
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift/fabric8-maven-sample-spring-boot-service.yml resource
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift/fabric8-maven-sample-spring-boot-deploymentconfig.yml resource
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift/fabric8-maven-sample-spring-boot-route.yml resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ fabric8-maven-sample-spring-boot ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 2 source files to /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ fabric8-maven-sample-spring-boot ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ fabric8-maven-sample-spring-boot ---
[INFO] No sources to compile
[INFO] 
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ fabric8-maven-sample-spring-boot ---
[INFO] No tests to run.
[INFO] 
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ fabric8-maven-sample-spring-boot ---
[INFO] Building jar: /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.jar
[INFO] 
[INFO] --- spring-boot-maven-plugin:1.4.1.RELEASE:repackage (default) @ fabric8-maven-sample-spring-boot ---
[INFO] 
[INFO] --- fabric8-maven-plugin:4.1.0:build (default) @ fabric8-maven-sample-spring-boot ---
[INFO] F8: Running in Kubernetes mode
[INFO] F8: Building Docker image in Kubernetes mode
[INFO] F8: Running generator spring-boot
[INFO] F8: spring-boot: Using Docker image fabric8/java-centos-openjdk8-jdk:1.5 as base / builder
[INFO] Copying files to /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/docker/fabric8/fabric8-maven-sample-spring-boot/latest/build/maven
[INFO] Building tar: /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/docker/fabric8/fabric8-maven-sample-spring-boot/latest/tmp/docker-build.tar
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Created docker-build.tar in 203 milliseconds
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Built image sha256:2b240
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Removed old image sha256:d27ac
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Tag with latest
[INFO] 
[INFO] --- fabric8-maven-plugin:4.1.0:helm (default) @ fabric8-maven-sample-spring-boot ---
[WARNING] F8: Chart source directory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/k8s-template does not exist so cannot make chart fabric8-maven-sample-spring-boot. Probably you need run 'mvn fabric8:resource' before.
[INFO] 
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ fabric8-maven-sample-spring-boot ---
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.jar to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.jar
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/pom.xml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.pom
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes.yml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT-kubernetes.yml
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift.yml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT-openshift.yml
[INFO] 
[INFO] >>> fabric8-maven-plugin:4.1.0:deploy (default-cli) > install @ fabric8-maven-sample-spring-boot >>>
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ fabric8-maven-sample-spring-boot ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/resources
[INFO] skip non existing resourceDirectory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/resources
[INFO] 
[INFO] --- fabric8-maven-plugin:4.1.0:resource (default) @ fabric8-maven-sample-spring-boot ---
[INFO] F8: Running generator spring-boot
[INFO] F8: spring-boot: Using Docker image fabric8/java-centos-openjdk8-jdk:1.5 as base / builder
[INFO] F8: using resource templates from /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/fabric8
[INFO] F8: fmp-service: Adding a default service 'fabric8-maven-sample-spring-boot' with ports [8080]
[INFO] F8: fmp-revision-history: Adding revision history limit to 2
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes/fabric8-maven-sample-spring-boot-service.yml resource
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes/fabric8-maven-sample-spring-boot-deployment.yml resource
[INFO] F8: using resource templates from /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/main/fabric8
[INFO] F8: fmp-service: Adding a default service 'fabric8-maven-sample-spring-boot' with ports [8080]
[INFO] F8: fmp-revision-history: Adding revision history limit to 2
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift/fabric8-maven-sample-spring-boot-service.yml resource
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift/fabric8-maven-sample-spring-boot-deploymentconfig.yml resource
[INFO] F8: validating /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift/fabric8-maven-sample-spring-boot-route.yml resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ fabric8-maven-sample-spring-boot ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ fabric8-maven-sample-spring-boot ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ fabric8-maven-sample-spring-boot ---
[INFO] No sources to compile
[INFO] 
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ fabric8-maven-sample-spring-boot ---
[INFO] No tests to run.
[INFO] Skipping execution of surefire because it has already been run for this configuration
[INFO] 
[INFO] --- maven-jar-plugin:2.6:jar (default-jar) @ fabric8-maven-sample-spring-boot ---
[INFO] Building jar: /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.jar
[INFO] 
[INFO] --- spring-boot-maven-plugin:1.4.1.RELEASE:repackage (default) @ fabric8-maven-sample-spring-boot ---
[INFO] 
[INFO] --- fabric8-maven-plugin:4.1.0:build (default) @ fabric8-maven-sample-spring-boot ---
[INFO] F8: Running in Kubernetes mode
[INFO] F8: Building Docker image in Kubernetes mode
[INFO] F8: Running generator spring-boot
[INFO] F8: spring-boot: Using Docker image fabric8/java-centos-openjdk8-jdk:1.5 as base / builder
[INFO] Copying files to /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/docker/fabric8/fabric8-maven-sample-spring-boot/latest/build/maven
[INFO] Building tar: /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/docker/fabric8/fabric8-maven-sample-spring-boot/latest/tmp/docker-build.tar
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Created docker-build.tar in 141 milliseconds
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Built image sha256:7763e
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Removed old image sha256:2b240
[INFO] F8: [fabric8/fabric8-maven-sample-spring-boot:latest] "spring-boot": Tag with latest
[INFO] 
[INFO] --- fabric8-maven-plugin:4.1.0:helm (default) @ fabric8-maven-sample-spring-boot ---
[WARNING] F8: Chart source directory /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/k8s-template does not exist so cannot make chart fabric8-maven-sample-spring-boot. Probably you need run 'mvn fabric8:resource' before.
[INFO] 
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ fabric8-maven-sample-spring-boot ---
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.jar to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.jar
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/pom.xml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT.pom
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes.yml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT-kubernetes.yml
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift.yml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT-openshift.yml
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes.yml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT-kubernetes.yml
[INFO] Installing /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/openshift.yml to /home/Rohaan/.m2/repository/io/fabric8/fabric8-maven-sample-spring-boot/4.1-SNAPSHOT/fabric8-maven-sample-spring-boot-4.1-SNAPSHOT-openshift.yml
[INFO] 
[INFO] <<< fabric8-maven-plugin:4.1.0:deploy (default-cli) < install @ fabric8-maven-sample-spring-boot <<<
[INFO] 
[INFO] 
[INFO] --- fabric8-maven-plugin:4.1.0:deploy (default-cli) @ fabric8-maven-sample-spring-boot ---
[INFO] F8: Using Kubernetes at https://192.168.42.184:8443/ in namespace default with manifest /home/Rohaan/work/repos/fabric8-maven-plugin/samples/spring-boot/target/classes/META-INF/fabric8/kubernetes.yml 
[INFO] F8: Using namespace: default
[INFO] F8: Updating a Service from kubernetes.yml
[INFO] F8: Updated Service: target/fabric8/applyJson/default/service-fabric8-maven-sample-spring-boot.json
[INFO] F8: Updating Deployment from kubernetes.yml
[INFO] F8: Updated Deployment: target/fabric8/applyJson/default/deployment-fabric8-maven-sample-spring-boot.json
[INFO] F8: HINT: Use the command `kubectl get pods -w` to watch your pods start up
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 17.915 s
[INFO] Finished at: 2019-05-23T22:09:36+05:30
[INFO] ------------------------------------------------------------------------
ment.yml pos/fabric8-maven-plugin/samples/spring-boot : $ vi target/classes/META-INF/fabric8/kubernetes/fabric8-maven-sample-spring-boot-deploym
yment.yml os/fabric8-maven-plugin/samples/spring-boot : $ cat target/classes/META-INF/fabric8/kubernetes/fabric8-maven-sample-spring-boot-deploy
---
apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    fabric8.io/git-commit: 1bad3dc1b3b0ec58eb9a52832624cf2cf636e4da
    fabric8.io/git-branch: pr/removeImageChangeTriggerFlag
    fabric8.io/git-url: [email protected]:rohanKanojia/fabric8-maven-plugin.git
    fabric8.io/scm-url: https://github.com/spring-projects/spring-boot/spring-boot-starter-parent/fabric8-maven-sample-spring-boot
    fabric8.io/scm-tag: HEAD
  labels:
    app: fabric8-maven-sample-spring-boot
    provider: fabric8
    version: 4.1-SNAPSHOT
    group: io.fabric8
  name: fabric8-maven-sample-spring-boot
spec:
  replicas: 1
  revisionHistoryLimit: 2
  selector:
    matchLabels:
      app: fabric8-maven-sample-spring-boot
      provider: fabric8
      group: io.fabric8
  template:
    metadata:
      annotations:
        fabric8.io/git-commit: 1bad3dc1b3b0ec58eb9a52832624cf2cf636e4da
        fabric8.io/git-branch: pr/removeImageChangeTriggerFlag
        fabric8.io/scm-tag: HEAD
        fabric8.io/git-url: [email protected]:rohanKanojia/fabric8-maven-plugin.git
        fabric8.io/scm-url: https://github.com/spring-projects/spring-boot/spring-boot-starter-parent/fabric8-maven-sample-spring-boot
      labels:
        app: fabric8-maven-sample-spring-boot
        provider: fabric8
        version: 4.1-SNAPSHOT
        group: io.fabric8
    spec:
      containers:
      - env:
        - name: JAVA_OPTIONS
          value: -Dspring.profiles.active=openshift
        - name: KUBERNETES_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        image: fabric8/fabric8-maven-sample-spring-boot:latest
        imagePullPolicy: IfNotPresent
        name: spring-boot
        ports:
        - containerPort: 8080
          name: http
          protocol: TCP
        - containerPort: 9779
          name: prometheus
          protocol: TCP
        - containerPort: 8778
          name: jolokia
          protocol: TCP
        securityContext:
          privileged: false
        volumeMounts:
        - mountPath: /config
          name: config-volume
      initContainers:
      - command:
        - sh
        - -c
        - echo myProperty=Boo_$DATASOURCE_NAME > /config/application.properties
        image: busybox
        name: dbmanager
        volumeMounts:
        - mountPath: /config
          name: config-volume
      volumes:
      - emptyDir:
          medium: Memory
        name: config-volume
~/work/repos/fabric8-maven-plugin/samples/spring-boot : $ kubectl get pods
NAME                                                          READY   STATUS        RESTARTS   AGE
fabric8-maven-sample-spring-boot-5dccf8cf9c-stsjs             1/1     Running       0          103s
fabric8-maven-sample-spring-boot-with-yaml-6fc44fcb5b-8vpv2   0/1     Terminating   1          59d
random-generator-675d9fc49d-66r5b                             0/1     Terminating   3          44d
random-generator-675d9fc49d-q2zfv                             0/1     Terminating   4          44d
~/work/repos/fabric8-maven-plugin/samples/spring-boot : $

Could you please share a sample project which reproduces this error?

@djotanov
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Sorry this feature actually works, I've hit another issue with 4.1:
#1628

@rohanKanojia
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Hmm, I want to get this in too. That issue's author has done good research and I was expecting a PR from him. Let me try to find some time this weekend to send a PR for this :-)

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@rhuss @rareddy @djotanov @nicolaferraro @rohanKanojia @wadeholler