14b84a79db
For effective cache use all endpoints should be specified explicitly as memcache client use specific algorithm to identify on which cache server key is stored based on servers availability and key name. If memcached deployed behind the service unless same key is stored on all memcached instances clients will always got cache misses and will require to use heavy calls to database. So in the end all keys will be stored on all memcached instances. Furthermore delete operations such as revoke token or remove keystone group call logic in service to remove data from cache if Loadbalancer is used this functionality can't work as we can't remove keys from all backends behind LB with single call. Change-Id: I253cfa2740fed5e1c70ced7308a489568e0f10b9
238 lines
5.2 KiB
YAML
238 lines
5.2 KiB
YAML
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Default values for memcached.
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# This is a YAML-formatted file.
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# Declare name/value pairs to be passed into your templates.
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# name: value
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---
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conf:
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memcached:
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max_connections: 8192
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# NOTE(pordirect): this should match the value in
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# `pod.resources.memcached.memory`
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memory: 1024
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stats_cachedump:
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enabled: true
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dependencies:
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dynamic:
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common:
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local_image_registry:
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jobs:
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- memcached-image-repo-sync
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services:
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- endpoint: node
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service: local_image_registry
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static:
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memcached:
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jobs: null
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image_repo_sync:
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services:
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- endpoint: internal
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service: local_image_registry
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secrets:
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oci_image_registry:
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memcached: memcached-oci-image-registry-key
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endpoints:
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cluster_domain_suffix: cluster.local
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local_image_registry:
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name: docker-registry
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namespace: docker-registry
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hosts:
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default: localhost
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internal: docker-registry
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node: localhost
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host_fqdn_override:
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default: null
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port:
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registry:
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node: 5000
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oci_image_registry:
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name: oci-image-registry
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namespace: oci-image-registry
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auth:
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enabled: false
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memcached:
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username: memcached
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password: password
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hosts:
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default: localhost
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host_fqdn_override:
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default: null
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port:
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registry:
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default: null
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oslo_cache:
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namespace: null
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host_fqdn_override:
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default: null
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hosts:
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default: memcached
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port:
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memcache:
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default: 11211
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metrics:
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default: 9150
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kube_dns:
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namespace: kube-system
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name: kubernetes-dns
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hosts:
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default: kube-dns
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host_fqdn_override:
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default: null
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path:
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default: null
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scheme: http
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port:
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dns_tcp:
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default: 53
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dns:
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default: 53
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protocol: UDP
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network:
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memcached: {}
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network_policy:
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memcached:
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ingress:
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- {}
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egress:
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- {}
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monitoring:
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prometheus:
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enabled: false
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memcached_exporter:
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scrape: true
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images:
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pull_policy: IfNotPresent
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tags:
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dep_check: 'quay.io/airshipit/kubernetes-entrypoint:latest-ubuntu_focal'
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memcached: 'docker.io/library/memcached:1.5.5'
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prometheus_memcached_exporter: docker.io/prom/memcached-exporter:v0.4.1
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image_repo_sync: docker.io/library/docker:17.07.0
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local_registry:
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active: false
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exclude:
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- dep_check
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- image_repo_sync
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labels:
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server:
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node_selector_key: openstack-control-plane
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node_selector_value: enabled
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manifests:
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configmap_bin: true
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statefulset: true
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job_image_repo_sync: true
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network_policy: false
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service: true
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secret_registry: true
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pod:
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security_context:
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server:
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pod:
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runAsUser: 65534
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container:
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memcached:
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allowPrivilegeEscalation: false
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readOnlyRootFilesystem: true
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memcached_exporter:
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allowPrivilegeEscalation: false
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readOnlyRootFilesystem: true
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probes:
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memcached:
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memcached:
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readiness:
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enabled: True
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params:
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initialDelaySeconds: 0
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periodSeconds: 10
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timeoutSeconds: 5
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memcached_exporter:
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liveness:
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enabled: True
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params:
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initialDelaySeconds: 15
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periodSeconds: 60
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timeoutSeconds: 10
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readiness:
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enabled: True
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params:
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initialDelaySeconds: 5
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periodSeconds: 60
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timeoutSeconds: 10
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affinity:
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anti:
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topologyKey:
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default: kubernetes.io/hostname
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type:
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default: preferredDuringSchedulingIgnoredDuringExecution
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weight:
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default: 10
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tolerations:
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memcached:
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enabled: false
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tolerations:
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- key: node-role.kubernetes.io/master
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operator: Exists
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effect: NoSchedule
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- key: node-role.kubernetes.io/control-plane
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operator: Exists
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effect: NoSchedule
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lifecycle:
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upgrades:
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deployments:
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pod_replacement_strategy: RollingUpdate
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revision_history: 3
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rolling_update:
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max_surge: 3
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max_unavailable: 1
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termination_grace_period:
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memcached:
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timeout: 30
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replicas:
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server: 1
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resources:
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enabled: false
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memcached:
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limits:
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cpu: "2000m"
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memory: "1024Mi"
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requests:
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cpu: "500m"
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memory: "128Mi"
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prometheus_memcached_exporter:
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limits:
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memory: "1024Mi"
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cpu: "2000m"
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requests:
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cpu: 500m
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memory: 128Mi
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jobs:
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image_repo_sync:
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requests:
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memory: "128Mi"
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cpu: "100m"
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limits:
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memory: "1024Mi"
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cpu: "2000m"
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...
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