1OC ADM(1) June 2016 OC ADM(1)
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6 oc adm create-master-certs -
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11 oc adm create-master-certs [OPTIONS]
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16 Create keys and certificates for a master
17 This command creates keys and certs necessary to run a secure master.
20 It also creates keys, certificates, and configuration necessary for
21 most related infrastructure components that are clients to the master.
22 See the related "create-node-config" command for generating per-node
23 config.
24 All files are expected or created in standard locations under the
27 cert-dir.
28 openshift.local.config/master/
31 ca.{crt,key,serial.txt}
32 master.server.{crt,key}
33 admin.{crt,key,kubeconfig}
34 ...
35 Note that the certificate authority (CA aka "signer") generated auto‐
38 matically is self-signed. In production usage, administrators are more
39 likely to want to generate signed certificates separately rather than
40 rely on a generated CA. Alternatively, start with an existing signed CA
41 and have this command use it to generate valid certificates.
42 This command would usually only be used once at installation. If you
45 need to regenerate the master server cert, DO NOT use --overwrite as
46 this would recreate ALL certs including the CA cert, invalidating any
47 existing infrastructure or client configuration. Instead, delete/rename
48 the existing server cert and run the command to fill it in:
49 mv openshift.local.config/master/master.server.crt{,.old}
52 oc adm create-master-certs --cert-dir=... \
53 --master= ⟨https://internal.master.fqdn:8443⟩ \
54 --public-master= ⟨https://external.master.fqdn:8443⟩ \
55 --hostnames=external.master.fqdn,internal.master.fqdn,local‐
56 host,127.0.0.1,172.17.42.1,kubernetes.default.local
57 Alternatively, use the related "ca create-server-cert" command to
60 explicitly create a certificate.
61 Regardless of --overwrite, the master server key/cert will be updated
64 if --hostnames does not match the current certificate. Regardless of
65 --overwrite, .kubeconfig files will be updated every time this command
66 is run, so always specify --master (and if needed, --public-master).
67 This is designed to match the behavior of "start" which rewrites
68 certs/confs for certain configuration changes.
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73 --cert-dir="openshift.local.config/master"
74 The certificate data directory.
75 --expire-days=730
78 Validity of the certificates in days (defaults to 2 years). WARN‐
79 ING: extending this above default value is highly discouraged.
80 --hostnames=[]
83 Every hostname or IP that server certs should be valid for
84 (comma-delimited list)
85 --master=" ⟨https://localhost:8443"⟩
88 The API server's URL.
89 --overwrite=false
92 Overwrite all existing cert/key/config files (WARNING: includes
93 signer/CA)
94 --public-master=""
97 The API public facing server's URL (if applicable).
98 --signer-expire-days=1825
101 Validity of the CA certificate in days (defaults to 5 years). WARN‐
102 ING: extending this above default value is highly discouraged.
103 --signer-name="openshift-signer@<current_timestamp>"
106 The name to use for the generated signer.
107
111 --allow_verification_with_non_compliant_keys=false
112 Allow a SignatureVerifier to use keys which are technically
113 non-compliant with RFC6962.
114 --alsologtostderr=false
117 log to standard error as well as files
118 --application_metrics_count_limit=100
121 Max number of application metrics to store (per container)
122 --as=""
125 Username to impersonate for the operation
126 --as-group=[]
129 Group to impersonate for the operation, this flag can be repeated
130 to specify multiple groups.
131 --azure-container-registry-config=""
134 Path to the file containing Azure container registry configuration
135 information.
136 --boot_id_file="/proc/sys/kernel/random/boot_id"
139 Comma-separated list of files to check for boot-id. Use the first
140 one that exists.
141 --cache-dir="/builddir/.kube/http-cache"
144 Default HTTP cache directory
145 --certificate-authority=""
148 Path to a cert file for the certificate authority
149 --client-certificate=""
152 Path to a client certificate file for TLS
153 --client-key=""
156 Path to a client key file for TLS
157 --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
160 CIDRs opened in GCE firewall for LB traffic proxy health checks
161 --cluster=""
164 The name of the kubeconfig cluster to use
165 --container_hints="/etc/cadvisor/container_hints.json"
168 location of the container hints file
169 --containerd="unix:///var/run/containerd.sock"
172 containerd endpoint
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 unreach‐
187 able:NoExecute that is added by default to every pod that does not
188 already have such a toleration.
189 --docker="unix:///var/run/docker.sock"
192 docker endpoint
193 --docker-tls=false
196 use TLS to connect to docker
197 --docker-tls-ca="ca.pem"
200 path to trusted CA
201 --docker-tls-cert="cert.pem"
204 path to client certificate
205 --docker-tls-key="key.pem"
208 path to private key
209 --docker_env_metadata_whitelist=""
212 a comma-separated list of environment variable keys that needs to
213 be collected for docker containers
214 --docker_only=false
217 Only report docker containers in addition to root stats
218 --docker_root="/var/lib/docker"
221 DEPRECATED: docker root is read from docker info (this is a fall‐
222 back, default: /var/lib/docker)
223 --enable_load_reader=false
226 Whether to enable cpu load reader
227 --event_storage_age_limit="default=24h"
230 Max length of time for which to store events (per type). Value is a
231 comma separated list of key values, where the keys are event types
232 (e.g.: creation, oom) or "default" and the value is a duration. Default
233 is applied to all non-specified event types
234 --event_storage_event_limit="default=100000"
237 Max number of events to store (per type). Value is a comma sepa‐
238 rated list of key values, where the keys are event types (e.g.: cre‐
239 ation, oom) or "default" and the value is an integer. Default is
240 applied to all non-specified event types
241 --global_housekeeping_interval=0
244 Interval between global housekeepings
245 --housekeeping_interval=0
248 Interval between container housekeepings
249 --httptest.serve=""
252 if non-empty, httptest.NewServer serves on this address and blocks
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-flush-frequency=0
265 Maximum number of seconds between log flushes
266 --log_backtrace_at=:0
269 when logging hits line file:N, emit a stack trace
270 --log_cadvisor_usage=false
273 Whether to log the usage of the cAdvisor container
274 --log_dir=""
277 If non-empty, write log files in this directory
278 --logtostderr=true
281 log to standard error instead of files
282 --machine_id_file="/etc/machine-id,/var/lib/dbus/machine-id"
285 Comma-separated list of files to check for machine-id. Use the
286 first one that exists.
287 --match-server-version=false
290 Require server version to match client version
291 -n, --namespace=""
294 If present, the namespace scope for this CLI request
295 --request-timeout="0"
298 The length of time to wait before giving up on a single server
299 request. Non-zero values should contain a corresponding time unit (e.g.
300 1s, 2m, 3h). A value of zero means don't timeout requests.
301 -s, --server=""
304 The address and port of the Kubernetes API server
305 --stderrthreshold=2
308 logs at or above this threshold go to stderr
309 --storage_driver_buffer_duration=0
312 Writes in the storage driver will be buffered for this duration,
313 and committed to the non memory backends as a single transaction
314 --storage_driver_db="cadvisor"
317 database name
318 --storage_driver_host="localhost:8086"
321 database host:port
322 --storage_driver_password="root"
325 database password
326 --storage_driver_secure=false
329 use secure connection with database
330 --storage_driver_table="stats"
333 table name
334 --storage_driver_user="root"
337 database username
338 --token=""
341 Bearer token for authentication to the API server
342 --user=""
345 The name of the kubeconfig user to use
346 -v, --v=0
349 log level for V logs
350 --version=false
353 Print version information and quit
354 --vmodule=
357 comma-separated list of pattern=N settings for file-filtered log‐
358 ging
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363 oc-adm(1),
364
368 June 2016, Ported from the Kubernetes man-doc generator
369Openshift Openshift CLI User Manuals OC ADM(1)