1KUBERNETES(1)(kubernetes) KUBERNETES(1)(kubernetes)
2Eric Paris Jan 2015
6
9 kubectl autoscale - Auto-scale a Deployment, ReplicaSet, StatefulSet,
10 or ReplicationController
11
15 kubectl autoscale [OPTIONS]
16
20 Creates an autoscaler that automatically chooses and sets the number of
21 pods that run in a kubernetes cluster.
22 Looks up a Deployment, ReplicaSet, StatefulSet, or ReplicationCon‐
25 troller by name and creates an autoscaler that uses the given resource
26 as a reference. An autoscaler can automatically increase or decrease
27 number of pods deployed within the system as needed.
28
32 --allow-missing-template-keys=true If true, ignore any errors in
33 templates when a field or map key is missing in the template. Only ap‐
34 plies to golang and jsonpath output formats.
35 --cpu-percent=-1 The target average CPU utilization (represented
38 as a percent of requested CPU) over all the pods. If it's not specified
39 or negative, a default autoscaling policy will be used.
40 --dry-run="none" Must be "none", "server", or "client". If client
43 strategy, only print the object that would be sent, without sending it.
44 If server strategy, submit server-side request without persisting the
45 resource.
46 --field-manager="kubectl-autoscale" Name of the manager used to
49 track field ownership.
50 -f, --filename=[] Filename, directory, or URL to files identifying
53 the resource to autoscale.
54 --generator="horizontalpodautoscaler/v1" The name of the API gen‐
57 erator to use. Currently there is only 1 generator.
58 -k, --kustomize="" Process the kustomization directory. This flag
61 can't be used together with -f or -R.
62 --max=-1 The upper limit for the number of pods that can be set by
65 the autoscaler. Required.
66 --min=-1 The lower limit for the number of pods that can be set by
69 the autoscaler. If it's not specified or negative, the server will ap‐
70 ply a default value.
71 --name="" The name for the newly created object. If not specified,
74 the name of the input resource will be used.
75 -o, --output="" Output format. One of: json|yaml|name|go-tem‐
78 plate|go-template-file|template|templatefile|jsonpath|json‐
79 path-as-json|jsonpath-file.
80 --record=false Record current kubectl command in the resource an‐
83 notation. If set to false, do not record the command. If set to true,
84 record the command. If not set, default to updating the existing anno‐
85 tation value only if one already exists.
86 -R, --recursive=false Process the directory used in -f, --filename
89 recursively. Useful when you want to manage related manifests organized
90 within the same directory.
91 --save-config=false If true, the configuration of current object
94 will be saved in its annotation. Otherwise, the annotation will be un‐
95 changed. This flag is useful when you want to perform kubectl apply on
96 this object in the future.
97 --show-managed-fields=false If true, keep the managedFields when
100 printing objects in JSON or YAML format.
101 --template="" Template string or path to template file to use when
104 -o=go-template, -o=go-template-file. The template format is golang tem‐
105 plates [http://golang.org/pkg/text/template/#pkg-overview].
106
110 --add-dir-header=false If true, adds the file directory to the
111 header of the log messages
112 --alsologtostderr=false log to standard error as well as files
115 --application-metrics-count-limit=100 Max number of application
118 metrics to store (per container)
119 --as="" Username to impersonate for the operation
122 --as-group=[] Group to impersonate for the operation, this flag
125 can be repeated to specify multiple groups.
126 --azure-container-registry-config="" Path to the file containing
129 Azure container registry configuration information.
130 --boot-id-file="/proc/sys/kernel/random/boot_id" Comma-separated
133 list of files to check for boot-id. Use the first one that exists.
134 --cache-dir="/builddir/.kube/cache" Default cache directory
137 --certificate-authority="" Path to a cert file for the certificate
140 authority
141 --client-certificate="" Path to a client certificate file for TLS
144 --client-key="" Path to a client key file for TLS
147 --cloud-provider-gce-l7lb-src-cidrs=130.211.0.0/22,35.191.0.0/16
150 CIDRs opened in GCE firewall for L7 LB traffic proxy health
151 checks
152 --cloud-provider-gce-lb-src-cidrs=130.211.0.0/22,209.85.152.0/22,209.85.204.0/22,35.191.0.0/16
155 CIDRs opened in GCE firewall for L4 LB traffic proxy health
156 checks
157 --cluster="" The name of the kubeconfig cluster to use
160 --container-hints="/etc/cadvisor/container_hints.json" location of
163 the container hints file
164 --containerd="/run/containerd/containerd.sock" containerd endpoint
167 --containerd-namespace="k8s.io" containerd namespace
170 --context="" The name of the kubeconfig context to use
173 --default-not-ready-toleration-seconds=300 Indicates the tolera‐
176 tionSeconds of the toleration for notReady:NoExecute that is added by
177 default to every pod that does not already have such a toleration.
178 --default-unreachable-toleration-seconds=300 Indicates the tolera‐
181 tionSeconds of the toleration for unreachable:NoExecute that is added
182 by default to every pod that does not already have such a toleration.
183 --disable-root-cgroup-stats=false Disable collecting root Cgroup
186 stats
187 --docker="unix:///var/run/docker.sock" docker endpoint
190 --docker-env-metadata-whitelist="" a comma-separated list of envi‐
193 ronment variable keys matched with specified prefix that needs to be
194 collected for docker containers
195 --docker-only=false Only report docker containers in addition to
198 root stats
199 --docker-root="/var/lib/docker" DEPRECATED: docker root is read
202 from docker info (this is a fallback, default: /var/lib/docker)
203 --docker-tls=false use TLS to connect to docker
206 --docker-tls-ca="ca.pem" path to trusted CA
209 --docker-tls-cert="cert.pem" path to client certificate
212 --docker-tls-key="key.pem" path to private key
215 --enable-load-reader=false Whether to enable cpu load reader
218 --event-storage-age-limit="default=0" Max length of time for which
221 to store events (per type). Value is a comma separated list of key val‐
222 ues, where the keys are event types (e.g.: creation, oom) or "default"
223 and the value is a duration. Default is applied to all non-specified
224 event types
225 --event-storage-event-limit="default=0" Max number of events to
228 store (per type). Value is a comma separated list of key values, where
229 the keys are event types (e.g.: creation, oom) or "default" and the
230 value is an integer. Default is applied to all non-specified event
231 types
232 --global-housekeeping-interval=1m0s Interval between global house‐
235 keepings
236 --housekeeping-interval=10s Interval between container housekeep‐
239 ings
240 --insecure-skip-tls-verify=false If true, the server's certificate
243 will not be checked for validity. This will make your HTTPS connections
244 insecure
245 --kubeconfig="" Path to the kubeconfig file to use for CLI re‐
248 quests.
249 --log-backtrace-at=:0 when logging hits line file:N, emit a stack
252 trace
253 --log-cadvisor-usage=false Whether to log the usage of the cAdvi‐
256 sor container
257 --log-dir="" If non-empty, write log files in this directory
260 --log-file="" If non-empty, use this log file
263 --log-file-max-size=1800 Defines the maximum size a log file can
266 grow to. Unit is megabytes. If the value is 0, the maximum file size is
267 unlimited.
268 --log-flush-frequency=5s Maximum number of seconds between log
271 flushes
272 --logtostderr=true log to standard error instead of files
275 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
278 Comma-separated list of files to check for machine-id. Use the
279 first one that exists.
280 --match-server-version=false Require server version to match
283 client version
284 -n, --namespace="" If present, the namespace scope for this CLI
287 request
288 --one-output=false If true, only write logs to their native sever‐
291 ity level (vs also writing to each lower severity level)
292 --password="" Password for basic authentication to the API server
295 --profile="none" Name of profile to capture. One of
298 (none|cpu|heap|goroutine|threadcreate|block|mutex)
299 --profile-output="profile.pprof" Name of the file to write the
302 profile to
303 --referenced-reset-interval=0 Reset interval for referenced bytes
306 (container_referenced_bytes metric), number of measurement cycles after
307 which referenced bytes are cleared, if set to 0 referenced bytes are
308 never cleared (default: 0)
309 --request-timeout="0" The length of time to wait before giving up
312 on a single server request. Non-zero values should contain a corre‐
313 sponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't time‐
314 out requests.
315 -s, --server="" The address and port of the Kubernetes API server
318 --skip-headers=false If true, avoid header prefixes in the log
321 messages
322 --skip-log-headers=false If true, avoid headers when opening log
325 files
326 --stderrthreshold=2 logs at or above this threshold go to stderr
329 --storage-driver-buffer-duration=1m0s Writes in the storage driver
332 will be buffered for this duration, and committed to the non memory
333 backends as a single transaction
334 --storage-driver-db="cadvisor" database name
337 --storage-driver-host="localhost:8086" database host:port
340 --storage-driver-password="root" database password
343 --storage-driver-secure=false use secure connection with database
346 --storage-driver-table="stats" table name
349 --storage-driver-user="root" database username
352 --tls-server-name="" Server name to use for server certificate
355 validation. If it is not provided, the hostname used to contact the
356 server is used
357 --token="" Bearer token for authentication to the API server
360 --update-machine-info-interval=5m0s Interval between machine info
363 updates.
364 --user="" The name of the kubeconfig user to use
367 --username="" Username for basic authentication to the API server
370 -v, --v=0 number for the log level verbosity
373 --version=false Print version information and quit
376 --vmodule= comma-separated list of pattern=N settings for
379 file-filtered logging
380 --warnings-as-errors=false Treat warnings received from the server
383 as errors and exit with a non-zero exit code
384
388 # Auto scale a deployment "foo", with the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used:
389 kubectl autoscale deployment foo --min=2 --max=10
390 # Auto scale a replication controller "foo", with the number of pods between 1 and 5, target CPU utilization at 80%:
392 kubectl autoscale rc foo --max=5 --cpu-percent=80
393
398 kubectl(1),
399
403 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
404 com) based on the kubernetes source material, but hopefully they have
405 been automatically generated since!
406Manuals User KUBERNETES(1)(kubernetes)