1OC ADM(1) June 2016 OC ADM(1)
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6 oc adm ipfailover - Install an IP failover group to a set of nodes
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11 oc adm ipfailover [OPTIONS]
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16 Configure or view IP Failover configuration
17 This command helps to setup an IP failover configuration for the clus‐
20 ter. An administrator can configure IP failover on an entire cluster or
21 on a subset of nodes (as defined via a labeled selector).
22 If an IP failover configuration does not exist with the given name, the
25 --create flag can be passed to create a deployment configuration that
26 will provide IP failover capability. If you are running in production,
27 it is recommended that the labeled selector for the nodes matches at
28 least 2 nodes to ensure you have failover protection, and that you pro‐
29 vide a --replicas= <n> value that matches the number of nodes for the
30 given labeled selector.
31
35 --check-interval=2
36 Run the check-script at this interval (seconds)
37 --check-script=""
40 Run this script at the check-interval to verify service is OK
41 --create=false
44 If true, create the configuration if it does not exist.
45 --dry-run=false
48 If true, show the result of the operation without performing it.
49 --images="openshift/origin-${component}:${version}"
52 The image to base this IP failover configurator on - ${component}
53 will be replaced based on --type.
54 -i, --interface=""
57 Network interface bound by VRRP to use for the set of virtual IP
58 ranges/addresses specified.
59 --iptables-chain="INPUT"
62 Add a rule to this iptables chain to accept 224.0.0.28 multicast
63 packets if no rule exists. When iptables-chain is empty do not change
64 iptables.
65 --latest-images=false
68 If true, attempt to use the latest images instead of the current
69 release
70 --notify-script=""
73 Run this script when state changes.
74 -o, --output=""
77 Output results as yaml or json instead of executing, or use name
78 for succint output (resource/name).
79 --output-version=""
82 The preferred API versions of the output objects
83 --preemption-strategy="preempt_delay 300"
86 Normlly VRRP will preempt a lower priority machine when a higher
87 priority one comes online. 'nopreempt' allows the lower priority
88 machine to maintain its MASTER status. The default 'preempt_delay 300'
89 causes MASTER to switch after 5 min.
90 -r, --replicas=1
93 The replication factor of this IP failover configuration; commonly
94 2 when high availability is desired. Please ensure this matches the
95 number of nodes that satisfy the selector (or default selector) speci‐
96 fied.
97 -l, --selector="ipfailover=<name>"
100 Selector (label query) to filter nodes on.
101 --service-account="ipfailover"
104 Name of the service account to use to run the ipfailover pod.
105 -a, --show-all=true
108 When printing, show all resources (false means hide terminated
109 pods.)
110 --show-labels=false
113 When printing, show all labels as the last column (default hide
114 labels column)
115 --sort-by=""
118 If non-empty, sort list types using this field specification. The
119 field specification is expressed as a JSONPath expression (e.g.
120 '{.metadata.name}'). The field in the API resource specified by this
121 JSONPath expression must be an integer or a string.
122 --template=""
125 Template string or path to template file to use when -o=go-tem‐
126 plate, -o=go-template-file. The template format is golang templates [
127 ⟨http://golang.org/pkg/text/template/#pkg-overview⟩].
128 --type="keepalived"
131 The type of IP failover configurator to use.
132 --virtual-ip-groups=0
135 Number of groups to create for VRRP, if not set a group will be
136 created for each virtual ip given on --virtual-ips.
137 --virtual-ips=""
140 A set of virtual IP ranges and/or addresses that the routers bind
141 and serve on and provide IP failover capability for.
142 --vrrp-id-offset=0
145 Offset to use for setting ids of VRRP instances (default offset is
146 0). This allows multiple ipfailover instances to run within the same
147 cluster.
148 -w, --watch-port=80
151 Port to monitor or watch for resource availability.
152
156 --allow_verification_with_non_compliant_keys=false
157 Allow a SignatureVerifier to use keys which are technically
158 non-compliant with RFC6962.
159 --alsologtostderr=false
162 log to standard error as well as files
163 --application_metrics_count_limit=100
166 Max number of application metrics to store (per container)
167 --as=""
170 Username to impersonate for the operation
171 --as-group=[]
174 Group to impersonate for the operation, this flag can be repeated
175 to specify multiple groups.
176 --azure-container-registry-config=""
179 Path to the file containing Azure container registry configuration
180 information.
181 --boot_id_file="/proc/sys/kernel/random/boot_id"
184 Comma-separated list of files to check for boot-id. Use the first
185 one that exists.
186 --cache-dir="/builddir/.kube/http-cache"
189 Default HTTP cache directory
190 --certificate-authority=""
193 Path to a cert file for the certificate authority
194 --client-certificate=""
197 Path to a client certificate file for TLS
198 --client-key=""
201 Path to a client key file for TLS
202 --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
205 CIDRs opened in GCE firewall for LB traffic proxy health checks
206 --cluster=""
209 The name of the kubeconfig cluster to use
210 --container_hints="/etc/cadvisor/container_hints.json"
213 location of the container hints file
214 --containerd="unix:///var/run/containerd.sock"
217 containerd endpoint
218 --context=""
221 The name of the kubeconfig context to use
222 --default-not-ready-toleration-seconds=300
225 Indicates the tolerationSeconds of the toleration for
226 notReady:NoExecute that is added by default to every pod that does not
227 already have such a toleration.
228 --default-unreachable-toleration-seconds=300
231 Indicates the tolerationSeconds of the toleration for unreach‐
232 able:NoExecute that is added by default to every pod that does not
233 already have such a toleration.
234 --docker="unix:///var/run/docker.sock"
237 docker endpoint
238 --docker-tls=false
241 use TLS to connect to docker
242 --docker-tls-ca="ca.pem"
245 path to trusted CA
246 --docker-tls-cert="cert.pem"
249 path to client certificate
250 --docker-tls-key="key.pem"
253 path to private key
254 --docker_env_metadata_whitelist=""
257 a comma-separated list of environment variable keys that needs to
258 be collected for docker containers
259 --docker_only=false
262 Only report docker containers in addition to root stats
263 --docker_root="/var/lib/docker"
266 DEPRECATED: docker root is read from docker info (this is a fall‐
267 back, default: /var/lib/docker)
268 --enable_load_reader=false
271 Whether to enable cpu load reader
272 --event_storage_age_limit="default=24h"
275 Max length of time for which to store events (per type). Value is a
276 comma separated list of key values, where the keys are event types
277 (e.g.: creation, oom) or "default" and the value is a duration. Default
278 is applied to all non-specified event types
279 --event_storage_event_limit="default=100000"
282 Max number of events to store (per type). Value is a comma sepa‐
283 rated list of key values, where the keys are event types (e.g.: cre‐
284 ation, oom) or "default" and the value is an integer. Default is
285 applied to all non-specified event types
286 --global_housekeeping_interval=0
289 Interval between global housekeepings
290 --housekeeping_interval=0
293 Interval between container housekeepings
294 --httptest.serve=""
297 if non-empty, httptest.NewServer serves on this address and blocks
298 --insecure-skip-tls-verify=false
301 If true, the server's certificate will not be checked for validity.
302 This will make your HTTPS connections insecure
303 --kubeconfig=""
306 Path to the kubeconfig file to use for CLI requests.
307 --log-flush-frequency=0
310 Maximum number of seconds between log flushes
311 --log_backtrace_at=:0
314 when logging hits line file:N, emit a stack trace
315 --log_cadvisor_usage=false
318 Whether to log the usage of the cAdvisor container
319 --log_dir=""
322 If non-empty, write log files in this directory
323 --logtostderr=true
326 log to standard error instead of files
327 --machine_id_file="/etc/machine-id,/var/lib/dbus/machine-id"
330 Comma-separated list of files to check for machine-id. Use the
331 first one that exists.
332 --match-server-version=false
335 Require server version to match client version
336 -n, --namespace=""
339 If present, the namespace scope for this CLI request
340 --request-timeout="0"
343 The length of time to wait before giving up on a single server
344 request. Non-zero values should contain a corresponding time unit (e.g.
345 1s, 2m, 3h). A value of zero means don't timeout requests.
346 -s, --server=""
349 The address and port of the Kubernetes API server
350 --stderrthreshold=2
353 logs at or above this threshold go to stderr
354 --storage_driver_buffer_duration=0
357 Writes in the storage driver will be buffered for this duration,
358 and committed to the non memory backends as a single transaction
359 --storage_driver_db="cadvisor"
362 database name
363 --storage_driver_host="localhost:8086"
366 database host:port
367 --storage_driver_password="root"
370 database password
371 --storage_driver_secure=false
374 use secure connection with database
375 --storage_driver_table="stats"
378 table name
379 --storage_driver_user="root"
382 database username
383 --token=""
386 Bearer token for authentication to the API server
387 --user=""
390 The name of the kubeconfig user to use
391 -v, --v=0
394 log level for V logs
395 --version=false
398 Print version information and quit
399 --vmodule=
402 comma-separated list of pattern=N settings for file-filtered log‐
403 ging
404
408 # Check the default IP failover configuration ("ipfailover"):
409 oc adm ipfailover
410 # See what the IP failover configuration would look like if it is created:
412 oc adm ipfailover -o json
413 # Create an IP failover configuration if it does not already exist:
415 oc adm ipfailover ipf --virtual-ips="10.1.1.1-4" --create
416 # Create an IP failover configuration on a selection of nodes labeled
418 # "router=us-west-ha" (on 4 nodes with 7 virtual IPs monitoring a service
419 # listening on port 80, such as the router process).
420 oc adm ipfailover ipfailover --selector="router=us-west-ha" --virtual-ips="1.2.3.4,10.1.1.100-104,5.6.7.8" --watch-port=80 --replicas=4 --create
421 # Use a different IP failover config image and see the configuration:
423 oc adm ipfailover ipf-alt --selector="hagroup=us-west-ha" --virtual-ips="1.2.3.4" -o yaml --images=myrepo/myipfailover:mytag
424
429 oc-adm(1),
430
434 June 2016, Ported from the Kubernetes man-doc generator
435Openshift Openshift CLI User Manuals OC ADM(1)