Kubectl wait multiple conditions. The second solution is inspired by kubectl rollout status.

Kubectl wait multiple conditions Examples: # Wait for the pod "busybox1" to contain the status condition of type "Ready" kubectl wait --for=condition=Ready pod/busybox1 This way your script will pause until specified pod is Running, and kubectl will output <pod-name> condition met I came across until kubectl get jobs myjob -o jsonpath='{. If you don't set a --timeout, the default wait is 30 seconds. ContainersReady: all containers in the Pod are ready. 13: kubectl Sometimes we need to wait for some condition to be met before continuing applying resources on the cluster (or accessing them in som way). For kubectl wait --for=condition=<condition name is waiting for a specific condition, so afaik it can not specify multiple conditions at the moment. The timeout should apply to the wait command, not to the individual resources. DazWilkin DazWilkin. # Wait for the pod "busybox1" to contain the status condition of type "Ready" kubectl wait --for=condition=Ready pod/busybox1 # The default value of status condition is true; you can wait for other targets after Something to note is that kubectl uses a fairly basic implementation of the jsonpath spec. spec. io/name=neo timed out waiting for the condition on pods/myneo4j-0 timed out waiting for the condition on pods/myneo4j-1 timed out waiting for the condition on pods/myneo4j-2 real 1m30. kubectl wait --for=condition=available --timeout=60s --all deployments Here the condition depends on the resource you are selecting. this gets me name kubectl get pods -o=jsonpath='{. metadata. I will monitor status section of the job using oc get --wait until status is updated. Arguments. No more! :) Meet the kubectl wait command and see it in action here. We can use kubectl wait to block an script until some criteria is met. Run kubectl wait with a selector matching more than one resource and a timeout. To wait for your pod to be ready, you will use the following kubectl wait command: $ kubectl -n nxs-r1-prod wait pod/rabbitmq-7575b7f589-dsdhl - I can wait till either the condition is true or a timeout happens, whichever is earlier. SYNOPSIS¶ kubectl wait [OPTIONS] DESCRIPTION¶ Experimental: Wait for a specific condition on one or many resources. Here is a list of jobs that i´m running: >kubectl get jobs NAME COMPLETIONS DURATION AGE create-samplenames 1/1 32s 25h download-db 1/1 20s 26h download-fastq 1/1 20s 26h download-scripts 1/1 22s 32m trimming-fasta-1 0/1 63s 63s trimming-fasta-2 0/1 63s 63s trimming-fasta-3 0/1 63s 63s trimming-fasta-4 0/1 62s 62s For wait to evaluate the state of a resource, you need to correctly identify it. Thanks for your help - You may have also seen the command kubectl wait --for=condition=Ready=true being used in commands to wait for resources to be in an expected state. Follow logs from multiple K8s Pods in a Deployment, ReplicaSet, etc. Would prefer not to wait (ha) for kubectl 1. containers[*]. My workaround is using oc get --wait, --wait is closed the command if the target resource is updated. kubernetes. Share. The Now we can use kubectl wait for the Available condition to get back to true using the following command: $ kubectl wait deploy/test-app --for = condition = Available --timeout = For the second snippet, you need to provide the pod id instead of the job name: kubectl wait --timeout=-1s --for=condition=Completed pod/kaniko-5jbhf. As I'm automating the process with Ansible I've tried creating a task with the bare command The command takes multiple resources and waits until the specified condition. 11. I thought that the following would work but unfortunately it seems that the timeout flag is not available: kubectl rollout status deployment deployment1 --timeout=30s kubectl rollout status deployment deployment2 --timeout=30s Currently tt's required to execute some kubectl exec commands into this pod to become ready. For example, assume you create a job called worker that print the word 'printsth' and pause for 3 seconds ten times. kubectl wait --for=condition=errored We want to wait for this job in the Azure DevOps pipeline, however the only option so far is to: kubectl wait --for=condition=complete --timeout=600s job/somejob. yaml kubectl apply -f 2. This is so much better than the previous hack. “Stateful workloads” can get hand-waved to using StatefulSets, and most intricate large deployable things You can check with kubectl wait --help to see this example and some more. Similarly I want to wait for any one pod in the statefulset to be ready. 11: kubectl wait is a new command that allows waiting for one or more resources to be deleted or to reach a specific condition. type=="Complete")]. Zero means check once and don't wait Meet the kubectl wait command and see it in action here. The second solution is inspired by kubectl rollout status. 4k 7 7 gold badges 49 The command takes multiple resources and waits until the specified condition. 40. You can use timeout before the kubectl wait or oc wait. Follow answered Mar 6, 2023 at 17:40. kubectl wait --for=condition=Ready=false pod/busybox1 # Wait for the pod "busybox1" to contain the status phase to be "Running" kubectl wait --for=jsonpath='{. phase}'=Running pod/busybox1 It will continually output a waiting message every 5 seconds until the condition is met. I want to get image and name from kubectl get pods . Further reading. It adds a kubectl wait --for=[delete|condition=condition-name] resource/string command. First, let’s create a job called worker that does something utterly useless in itself (print the word blah to stdout and pause for 3 As stated in the comments kubectl wait is the way to go. For the second snippet, you need to provide the pod id instead of the job name: kubectl wait --timeout=-1s --for=condition=Completed pod/kaniko-5jbhf. For further reference on wait. Although kubectl wait --for=condition=complete job/myjob and kubectl wait --for=condition=complete job/myjob allow us to check whether the job completed but there is no way to check if the job just finished executing (irrespective of success or failure). Alternatively, the command can wait for the given set of resources to be deleted by providing the "delete" keyword as the value to the --for flag. $ kubectl create ns waitplayground $ kubectl -n waitplayground \ create job worker \ --image centos:7 -- \ sh -c \ 'for i in {1. name of the Job is part of the basis for naming those Pods. Instructions for interacting with Using the kubectl wait command with ansible tasks: - name: Wait for all k8s nodes to be ready shell: kubectl wait --for=condition=Ready nodes --all --timeout=600s register: nodes_ready - debug: var=nodes_ready. But I'm not sure how to do it for multiple deployments in parallel (do something with channels?). My workaround is using oc get --wait Instead of deploying a pod or service and periodically checking its status for readiness, or having your automation scripts wait for a certain number of seconds before kubectl wait <resource> --for='condition1=Status=Value, conditiond2=Status=Value ' . The name of a Job must be a valid DNS subdomain value, but this can produce unexpected results You can also use kubectl wait for deployments: $ kubectl wait deploy/slow --for condition=available deployment. Kubernetes How to categorize this PR? /area testing /kind bug test What this PR does / why we need it: This PR updates the kubectl wait command used to check conditions for a seed to handle multiple conditi kubectl apply -f crd. See the official documentation of kubectl wait for more detailed information and examples. items[*]. Wait until all deployments are in the Ready state, or fail if more than 30 seconds has elapsed. name}' | xargs -n 1 kubectl wait --for=condition=available --timeout=600s deployment/myapp -n namespace still be old pods in Terminating status, or new pods that are not fully online yet. You can find out more about the specifics of it here. phase}'=Running pod/busybox1 I've found jsonpath examples for testing multiple values but not extracting multiple values. nats-cluster-operator. kubectl wait deployment -l app=backend --for=condition=Available. $ kubectl rollout status deployment xxx Waiting for deployment "xxx" rollout to Experimental: Wait for a specific condition on one or many resources. I adjusted the code to my needs and it's working. Below is my most recent, albeit completely wrong, attempt, however this illustrates the general sequence we'd like. Improve this answer. Alternatively, the command can wait for the kubectl wait --for=condition=<condition name is waiting for a specific condition, so afaik it can not specify multiple conditions at the moment. CHANGELOG-1. yaml 👍 8 dahrens, vivian-src, hdhruna, ZhiHanZ, developer-guy, f9n, 2mind, and yeahdongcn reacted with thumbs up emoji 👎 . 1. The command that you use: kubectl wait --for=condition=complete pod/<my-pod> will not work because a pod doesn't have such condition. When an init container fails, Kubernetes restarts it until it successfully completes. Ready: the Pod is Kubectl wait > time kubectl wait --for=condition=delete pod -l app. Tekton TaskRuns and PipelineRun only use a condition of type Succeeded. Certainly, we can wait for any The kubectl wait command takes a condition that needs to be met before the wait is over. g. I found out that kubectl logs with the --follow or -f flag pointed to /dev/null actually "waits" until all jobs are done. For example: kubectl wait --for=condition=Ready pod backend --timeout=90s kubectl wait pod \ --all \ --for=condition=Ready \ --namespace=${ns} Share. 122s sys 0m0. yaml kubectl apply -f my-resources-depending-on-crd. In this case the pipeline task would only exit if the job has completed or the timeout has elapsed. . /close. 11 wait functionality tl;dr - There are at least two ways to wait for Kubernetes resources you probably care about: kubectl wait for Pods, initContainers for everything else One somewhat rarely talked about issue in Kubernetes land is how exactly people wait for stuff to happen. Initialized: all init containers have completed successfully. We are going to use a Deployment as an example, but this can be used in any object that publishes conditions using the status field: The command takes multiple resources and waits until the specified condition is seen in the Status field of every given resource. Alternatively, the command can wait for the given set of resources to be deleted by providing the delete keyword as the value to the --for flag. I don't think we will support multiple deployments in kubectl rollout status. 305s (the timeout of the timeout command should be a little larger than the timeout of the kubectl Experimental: Wait for a specific condition on one or many resources. status. It will only return when the Job is completed (or the timeout is reached): kubectl wait --for=condition=complete job/myjob --timeout=60s. Alternatively, the command can wait for the given set of kubectl wait --for =condition=failure job/myjob && exit 1 & failure_pid=$! Then use the Bash builtin wait -n $PID1 $PID2 to wait for one of the conditions to succeed. If this is what you are looking for, a simple bash while loop with kubectl status check did the trick for me. kubectl wait timeout argument is poorly documented and ill-suited to waiting on multiple resources. Follow edited Mar 22, 2019 at 17:00. Specifically we do not support the || operator here. # Wait for the pod "busybox1" to contain the status condition of type "Ready" kubectl wait --for=condition=Ready pod/busybox1 # The default value of status condition is true; you can wait for other targets after To wait for a certain pod to be completed the command is . I'd suggest checking kubectl wait since that'd be a better fit for multiple wait condition. 163s user 0m0. Further explanation: kubectl wait - Experimental: Wait for a specific condition on one or many resources. Unfortunately I believe that currently to support this specific use case you would need to use a shell function to wait on two separate fields like that. stdout_lines If you want to check the condition for some particular nodes only, you can use a --selector instead of --all like this: Kubernetes runs multiple init containers in a Pod sequentially, ensuring each completes successfully before proceeding. Avoid unpredictable hangs blocking pipelines by capping waits. The default status value of condition-name is true, you > can set false with condition=condition-name=false. The command takes multiple resources and waits until the specified condition is seen in the Status field of every given resource. Pod Conditions are as follows:. kubectl wait --for=condition=complete kubectl apply -f 1. This allows a single object to report multiple Conditions at once. answered Mar 22, 2019 at 16:55. A successful message will be Kubernetes itself is made of multiple binaries (kubelet on each node, one apiserver, one kube-controller-manager and one kube-scheduler). latest --restart=Never $ kubectl wait pods -n default -l run=myhttpd --for condition=Ready --timeout=90s. Set Reasonable Timeouts. When the control plane creates new Pods for a Job, the . You can see the values for Conditions using kubectl describe <resource>. 3k 8 8 gold badges 60 60 silver badges 108 108 bronze badges. PodScheduled: the Pod has been scheduled to a node. Waiting for a pod to be ready: kubectl wait --for=condition=Ready. Eduardo Baitello Eduardo Baitello. kubectl wait --for=condition=Ready pod/pod-name. Basically I need to wait until pod initialization of init container before proceeding for next step in my script. Multiple commands; command: ["/bin/sh","-c"] args: ["command one I wanna use kubectl wait command to wait until a pvc is bound. yaml kubectl wait --for condition="established" crd -f crd. First, let’s create a job called worker that does something utterly The command takes multiple resources and waits until the specified condition is seen in the Status field of every given resource. Update of status section is meaning the Job is You can use wait command, which takes multiple resources and waits until the specified condition. is seen in the Status field of every given resource. Advanced Readiness Check using a Watcher with kubectl. The script works fine when all jobs fail or all jobs succeed. However, the syntax seems correct for calling the job itself as job/kaniko. If it doesn't support it would be a nice addition there. In the case the job fails we are left with just waiting for timeout. Note that the condition for a deployment is available, not ready. The command takes multiple resources and waits until the specified condition is seen in the Status field of every given resource. For example--for='': The condition to wait on: [delete|condition=condition- name|jsonpath='{JSONPath expression}'=JSONPath Condition]. 11 version:. For example with a timeout of max. conditions[?(@. What you expected to happen:. status}' | grep True ; do sleep 1 ; done quite a few times but I want to know if it is running, not if it is already complete. As with all other Kubernetes config, a Job needs apiVersion, kind, and metadata fields. But when some job fails, kubectl wait --for=condition=complete -l LABEL --timeout 14400s && exit 0 & completion_pid=$! kubectl wait --for=condition=failed -l LABEL --timeout 14400s && exit 1 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The kubectl wait command. , sync loops): If you think that the ‘Errored’ state can be useful for other components or the user (e. nats As per the Github link, you can use the below command as a workaround. This is just a re-submit of #754 which, despite being confirmed & assigned, was closed as stale without any fix. Name Description--allow-missing-template-keys: The condition to wait on: [delete|condition=condition-name]--timeout <arg> The length of time to wait before giving up. I've tried to use kubectl wait but cannot figure out what condition to use that applies to the completion of a crd. What happened:. This does not wait on any particular pod instance, providing resilience if containers restart. Kubernetes introduced the kubectl wait in v1. Now, for the Job deletion, if How do you wait for something to happen with kubectl?I used to use a while true loop in a shell script and check with a complicated kubectl get command until I’d see a certain condition, such as condition=Ready would be met. Name Description; arg: Options. apps/slow condition met. 057s Please suggest how the make the command to Now for the problem I need to wait for multiple jobs identified by the same label. Example: conditions: - lastTransitionTime: "2020-05-04T02:19:14Z" message: "Tasks Completed: 4, Skipped: 0" reason: Succeeded status: "True" type: Succeeded The different status and messages available for the Succeeded condition are available in the documentation: The output is similar to this: Writing a Job spec. And each of these binaries have multiple components (i. We could also have conditional operators like "AND" and "OR" The command takes multiple resources and waits until the specified condition is seen in the Status field of every given resource. You can run multiple commands in the init container or multiple init containers to do the trick. We find kubectl wait kubectl wait --for=condition=complete --timeout=24h job/longrunningjobname. I tried kubectl wait --for=condition=bound pvc/my-pvc-claim --timeout=2s with a pvc which is already bound, but it doesn't seem to work. e. However, the syntax kubectl wait --for=condition=Progressing=False --for=condition=Degraded=False --for=condition=Available=True would mean wait for conditions (Progressing=False OR I found a workaround that fits my purpose. For more advanced cases where you want real-time updates, you can use the ‘kubectl get pod’ with the ‘–watch’ or ‘-w’ flag to monitor the pod’s status in real time: kubectl get pods -w I am looking for a Kubectl wait command for init containers. 10} ; do echo kubectl wait <arg> Experimental: Wait for a specific condition on one or many resources. Example from the kubectl wait --help. As an example: status: conditions: - lastProbeTime: null lastTransitionTime: "2024-10-23T18:41:59Z" status: "True" type The command takes multiple resources and waits until the specified condition is seen in the Status field of every given resource. mrxx cpfu tgcp whpwc biv kxmdngs kbskmis mjpzf hxoc iowwu cxklf wrkhtc qyvmm yzxu wdojrv