automation-suite
2022.10
false
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Guía de instalación de Automation Suite

Última actualización 30 de jun. de 2025

Rook Ceph o Looker pod atascados en estado Init

Detalles de error

El código de error para este problema es 30001.

Descripción

Ocasionalmente, al reiniciar el nodo, un problema hace que el pod Looker o Rook Ceph se quede atascado en el estado Init, ya que falta el volumen necesario para adjuntar el PVC a un pod.

Verifica si el problema está efectivamente relacionado con Longhorn ejecutando el siguiente comando:

kubectl get events -A -o json | jq -r '.items[] | select(.message != null) | select(.message | contains("cannot get resource \"volumeattachments\" in API group \"storage.k8s.io\""))'kubectl get events -A -o json | jq -r '.items[] | select(.message != null) | select(.message | contains("cannot get resource \"volumeattachments\" in API group \"storage.k8s.io\""))'

Si está relacionado con Longhorn, este comando debería devolver una lista de nombres de pods afectados por el problema.Si el comando no devuelve nada, la causa del problema es otra.

Solución

Ejecuta el siguiente script para arreglar los pods problemáticos si el comando anterior devuelve una salida no vacía:

#!/bin/bash


function wait_till_rollout() {
    local namespace=$1
    local object_type=$2
    local deploy=$3

    local try=0
    local maxtry=2
    local status="notready"

    while [[ ${status} == "notready" ]]  && (( try != maxtry )) ; do
        kubectl -n "$namespace" rollout status "$deploy" -w --timeout=600s; 
        # shellcheck disable=SC2181
        if [[ "$?" -ne 0 ]]; 
        then
            status="notready"
            try=$((try+1))
        else
            status="ready"
        fi
    done
    if [[ $status == "notready" ]]; then 
        echo "$deploy of type $object_type failed in namespace $namespace. Plz re-run the script once again to verify that it's not a transient issue !!!"
        exit 1
    fi
}

function fix_pv_deployments() {
    for pod_name in $(kubectl get events -A -o json | jq -r '.items[]  | select(.message | contains("cannot get resource \"volumeattachments\" in API group \"storage.k8s.io\"")) | select(.involvedObject.kind == "Pod") | .involvedObject.name + "/" + .involvedObject.namespace' | sort | uniq)
    do
        POD_NAME=$(echo "${pod_name}" | cut -d '/' -f1)
        NS=$(echo "${pod_name}" | cut -d '/' -f2)
        controller_data=$(kubectl -n "${NS}" get po "${POD_NAME}" -o json | jq -r '[.metadata.ownerReferences[] | select(.controller==true)][0] | .kind + "=" + .name')
        [[ $controller_data == "" ]] && error "Error: Could not determine owner for pod: ${POD_NAME}" && exit 1
        CONTROLLER_KIND=$(echo "${controller_data}" | cut -d'=' -f1)
        CONTROLLER_NAME=$(echo "${controller_data}" | cut -d'=' -f2)
        if [[ $CONTROLLER_KIND == "ReplicaSet" ]]
        then
            controller_data=$(kubectl  -n "${NS}" get "${CONTROLLER_KIND}" "${CONTROLLER_NAME}" -o json | jq -r '[.metadata.ownerReferences[] | select(.controller==true)][0] | .kind + "=" + .name')
            CONTROLLER_KIND=$(echo "${controller_data}" | cut -d'=' -f1)
            CONTROLLER_NAME=$(echo "${controller_data}" | cut -d'=' -f2)

            replicas=$(kubectl -n "${NS}" get "$CONTROLLER_KIND" "$CONTROLLER_NAME" -o json | jq -r '.status.replicas')
            unavailable_replicas=$(kubectl -n "${NS}" get "$CONTROLLER_KIND" "$CONTROLLER_NAME" -o json | jq -r '.status.unavailableReplicas')

            if [ -n "$unavailable_replicas" ]; then 
                available_replicas=$((replicas - unavailable_replicas))
                if [ $available_replicas -eq 0 ]; then
                    kubectl -n "$NS" scale "$CONTROLLER_KIND" "$CONTROLLER_NAME" --replicas=0
                    sleep 15
                    kubectl -n "$NS" scale "$CONTROLLER_KIND" "$CONTROLLER_NAME" --replicas="$replicas"
                    deployment_name="$CONTROLLER_KIND/$CONTROLLER_NAME"
                    wait_till_rollout "$NS" "deploy" "$deployment_name"
                fi 
            fi
        fi
    done
}

fix_pv_deployments#!/bin/bash


function wait_till_rollout() {
    local namespace=$1
    local object_type=$2
    local deploy=$3

    local try=0
    local maxtry=2
    local status="notready"

    while [[ ${status} == "notready" ]]  && (( try != maxtry )) ; do
        kubectl -n "$namespace" rollout status "$deploy" -w --timeout=600s; 
        # shellcheck disable=SC2181
        if [[ "$?" -ne 0 ]]; 
        then
            status="notready"
            try=$((try+1))
        else
            status="ready"
        fi
    done
    if [[ $status == "notready" ]]; then 
        echo "$deploy of type $object_type failed in namespace $namespace. Plz re-run the script once again to verify that it's not a transient issue !!!"
        exit 1
    fi
}

function fix_pv_deployments() {
    for pod_name in $(kubectl get events -A -o json | jq -r '.items[]  | select(.message | contains("cannot get resource \"volumeattachments\" in API group \"storage.k8s.io\"")) | select(.involvedObject.kind == "Pod") | .involvedObject.name + "/" + .involvedObject.namespace' | sort | uniq)
    do
        POD_NAME=$(echo "${pod_name}" | cut -d '/' -f1)
        NS=$(echo "${pod_name}" | cut -d '/' -f2)
        controller_data=$(kubectl -n "${NS}" get po "${POD_NAME}" -o json | jq -r '[.metadata.ownerReferences[] | select(.controller==true)][0] | .kind + "=" + .name')
        [[ $controller_data == "" ]] && error "Error: Could not determine owner for pod: ${POD_NAME}" && exit 1
        CONTROLLER_KIND=$(echo "${controller_data}" | cut -d'=' -f1)
        CONTROLLER_NAME=$(echo "${controller_data}" | cut -d'=' -f2)
        if [[ $CONTROLLER_KIND == "ReplicaSet" ]]
        then
            controller_data=$(kubectl  -n "${NS}" get "${CONTROLLER_KIND}" "${CONTROLLER_NAME}" -o json | jq -r '[.metadata.ownerReferences[] | select(.controller==true)][0] | .kind + "=" + .name')
            CONTROLLER_KIND=$(echo "${controller_data}" | cut -d'=' -f1)
            CONTROLLER_NAME=$(echo "${controller_data}" | cut -d'=' -f2)

            replicas=$(kubectl -n "${NS}" get "$CONTROLLER_KIND" "$CONTROLLER_NAME" -o json | jq -r '.status.replicas')
            unavailable_replicas=$(kubectl -n "${NS}" get "$CONTROLLER_KIND" "$CONTROLLER_NAME" -o json | jq -r '.status.unavailableReplicas')

            if [ -n "$unavailable_replicas" ]; then 
                available_replicas=$((replicas - unavailable_replicas))
                if [ $available_replicas -eq 0 ]; then
                    kubectl -n "$NS" scale "$CONTROLLER_KIND" "$CONTROLLER_NAME" --replicas=0
                    sleep 15
                    kubectl -n "$NS" scale "$CONTROLLER_KIND" "$CONTROLLER_NAME" --replicas="$replicas"
                    deployment_name="$CONTROLLER_KIND/$CONTROLLER_NAME"
                    wait_till_rollout "$NS" "deploy" "$deployment_name"
                fi 
            fi
        fi
    done
}

fix_pv_deployments

  • Detalles de error
  • Descripción
  • Solución

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