1KUBERNETES(1) Jan 2015 KUBERNETES(1)
2
6 kubectl scale - Set a new size for a Deployment, ReplicaSet or
7 Replication Controller
8
12 kubectl scale [OPTIONS]
13
17 Set a new size for a Deployment, ReplicaSet, Replication Controller, or
18 StatefulSet.
19 Scale also allows users to specify one or more preconditions for the
22 scale action.
23 If --current-replicas or --resource-version is specified, it is
26 validated before the scale is attempted, and it is guaranteed that the
27 precondition holds true when the scale is sent to the server.
28
32 --all=false
33 Select all resources in the namespace of the specified resource
34 types
35 --allow-missing-template-keys=true
38 If true, ignore any errors in templates when a field or map key is
39 missing in the template. Only applies to golang and jsonpath output
40 formats.
41 --current-replicas=-1
44 Precondition for current size. Requires that the current size of
45 the resource match this value in order to scale.
46 -f, --filename=[]
49 Filename, directory, or URL to files identifying the resource to
50 set a new size
51 -k, --kustomize=""
54 Process the kustomization directory. This flag can't be used
55 together with -f or -R.
56 -o, --output=""
59 Output format. One of:
60 json|yaml|name|go-template|go-template-file|template|templatefile|jsonpath|jsonpath-file.
61 --record=false
64 Record current kubectl command in the resource annotation. If set
65 to false, do not record the command. If set to true, record the
66 command. If not set, default to updating the existing annotation value
67 only if one already exists.
68 -R, --recursive=false
71 Process the directory used in -f, --filename recursively. Useful
72 when you want to manage related manifests organized within the same
73 directory.
74 --replicas=0
77 The new desired number of replicas. Required.
78 --resource-version=""
81 Precondition for resource version. Requires that the current
82 resource version match this value in order to scale.
83 -l, --selector=""
86 Selector (label query) to filter on, supports '=', '==', and
87 '!='.(e.g. -l key1=value1,key2=value2)
88 --template=""
91 Template string or path to template file to use when
92 -o=go-template, -o=go-template-file. The template format is golang
93 templates [ ⟨http://golang.org/pkg/text/template/#pkg-overview⟩].
94 --timeout=0s
97 The length of time to wait before giving up on a scale operation,
98 zero means don't wait. Any other values should contain a corresponding
99 time unit (e.g. 1s, 2m, 3h).
100
104 --add-dir-header=false
105 If true, adds the file directory to the header
106 --alsologtostderr=false
109 log to standard error as well as files
110 --application-metrics-count-limit=100
113 Max number of application metrics to store (per container)
114 --as=""
117 Username to impersonate for the operation
118 --as-group=[]
121 Group to impersonate for the operation, this flag can be repeated
122 to specify multiple groups.
123 --azure-container-registry-config=""
126 Path to the file containing Azure container registry configuration
127 information.
128 --boot-id-file="/proc/sys/kernel/random/boot_id"
131 Comma-separated list of files to check for boot-id. Use the first
132 one that exists.
133 --cache-dir="/builddir/.kube/http-cache"
136 Default HTTP cache directory
137 --certificate-authority=""
140 Path to a cert file for the certificate authority
141 --client-certificate=""
144 Path to a client certificate file for TLS
145 --client-key=""
148 Path to a client key file for TLS
149 --cloud-provider-gce-l7lb-src-cidrs=130.211.0.0/22,35.191.0.0/16
152 CIDRs opened in GCE firewall for L7 LB traffic proxy health checks
153 --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
156 CIDRs opened in GCE firewall for L4 LB traffic proxy health checks
157 --cluster=""
160 The name of the kubeconfig cluster to use
161 --container-hints="/etc/cadvisor/container_hints.json"
164 location of the container hints file
165 --containerd="/run/containerd/containerd.sock"
168 containerd endpoint
169 --containerd-namespace="k8s.io"
172 containerd namespace
173 --context=""
176 The name of the kubeconfig context to use
177 --default-not-ready-toleration-seconds=300
180 Indicates the tolerationSeconds of the toleration for
181 notReady:NoExecute that is added by default to every pod that does not
182 already have such a toleration.
183 --default-unreachable-toleration-seconds=300
186 Indicates the tolerationSeconds of the toleration for
187 unreachable:NoExecute that is added by default to every pod that does
188 not already have such a toleration.
189 --disable-root-cgroup-stats=false
192 Disable collecting root Cgroup stats
193 --docker="unix:///var/run/docker.sock"
196 docker endpoint
197 --docker-env-metadata-whitelist=""
200 a comma-separated list of environment variable keys that needs to
201 be collected for docker containers
202 --docker-only=false
205 Only report docker containers in addition to root stats
206 --docker-root="/var/lib/docker"
209 DEPRECATED: docker root is read from docker info (this is a
210 fallback, default: /var/lib/docker)
211 --docker-tls=false
214 use TLS to connect to docker
215 --docker-tls-ca="ca.pem"
218 path to trusted CA
219 --docker-tls-cert="cert.pem"
222 path to client certificate
223 --docker-tls-key="key.pem"
226 path to private key
227 --enable-load-reader=false
230 Whether to enable cpu load reader
231 --event-storage-age-limit="default=0"
234 Max length of time for which to store events (per type). Value is a
235 comma separated list of key values, where the keys are event types
236 (e.g.: creation, oom) or "default" and the value is a duration. Default
237 is applied to all non-specified event types
238 --event-storage-event-limit="default=0"
241 Max number of events to store (per type). Value is a comma
242 separated list of key values, where the keys are event types (e.g.:
243 creation, oom) or "default" and the value is an integer. Default is
244 applied to all non-specified event types
245 --global-housekeeping-interval=1m0s
248 Interval between global housekeepings
249 --housekeeping-interval=10s
252 Interval between container housekeepings
253 --insecure-skip-tls-verify=false
256 If true, the server's certificate will not be checked for validity.
257 This will make your HTTPS connections insecure
258 --kubeconfig=""
261 Path to the kubeconfig file to use for CLI requests.
262 --log-backtrace-at=:0
265 when logging hits line file:N, emit a stack trace
266 --log-cadvisor-usage=false
269 Whether to log the usage of the cAdvisor container
270 --log-dir=""
273 If non-empty, write log files in this directory
274 --log-file=""
277 If non-empty, use this log file
278 --log-file-max-size=1800
281 Defines the maximum size a log file can grow to. Unit is megabytes.
282 If the value is 0, the maximum file size is unlimited.
283 --log-flush-frequency=5s
286 Maximum number of seconds between log flushes
287 --logtostderr=true
290 log to standard error instead of files
291 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
294 Comma-separated list of files to check for machine-id. Use the
295 first one that exists.
296 --match-server-version=false
299 Require server version to match client version
300 -n, --namespace=""
303 If present, the namespace scope for this CLI request
304 --password=""
307 Password for basic authentication to the API server
308 --profile="none"
311 Name of profile to capture. One of
312 (none|cpu|heap|goroutine|threadcreate|block|mutex)
313 --profile-output="profile.pprof"
316 Name of the file to write the profile to
317 --request-timeout="0"
320 The length of time to wait before giving up on a single server
321 request. Non-zero values should contain a corresponding time unit (e.g.
322 1s, 2m, 3h). A value of zero means don't timeout requests.
323 -s, --server=""
326 The address and port of the Kubernetes API server
327 --skip-headers=false
330 If true, avoid header prefixes in the log messages
331 --skip-log-headers=false
334 If true, avoid headers when opening log files
335 --stderrthreshold=2
338 logs at or above this threshold go to stderr
339 --storage-driver-buffer-duration=1m0s
342 Writes in the storage driver will be buffered for this duration,
343 and committed to the non memory backends as a single transaction
344 --storage-driver-db="cadvisor"
347 database name
348 --storage-driver-host="localhost:8086"
351 database host:port
352 --storage-driver-password="root"
355 database password
356 --storage-driver-secure=false
359 use secure connection with database
360 --storage-driver-table="stats"
363 table name
364 --storage-driver-user="root"
367 database username
368 --tls-server-name=""
371 Server name to use for server certificate validation. If it is not
372 provided, the hostname used to contact the server is used
373 --token=""
376 Bearer token for authentication to the API server
377 --update-machine-info-interval=5m0s
380 Interval between machine info updates.
381 --user=""
384 The name of the kubeconfig user to use
385 --username=""
388 Username for basic authentication to the API server
389 -v, --v=0
392 number for the log level verbosity
393 --version=false
396 Print version information and quit
397 --vmodule=
400 comma-separated list of pattern=N settings for file-filtered
401 logging
402
406 # Scale a replicaset named 'foo' to 3.
407 kubectl scale --replicas=3 rs/foo
408 # Scale a resource identified by type and name specified in "foo.yaml" to 3.
410 kubectl scale --replicas=3 -f foo.yaml
411 # If the deployment named mysql's current size is 2, scale mysql to 3.
413 kubectl scale --current-replicas=2 --replicas=3 deployment/mysql
414 # Scale multiple replication controllers.
416 kubectl scale --replicas=5 rc/foo rc/bar rc/baz
417 # Scale statefulset named 'web' to 3.
419 kubectl scale --replicas=3 statefulset/web
420
425 kubectl(1),
426
430 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
431 com) based on the kubernetes source material, but hopefully they have
432 been automatically generated since!
433Eric Paris kubernetes User Manuals KUBERNETES(1)