KUBERNETES(1)(kubernetes)

Eric Paris Jan 2015

NAME
kubectl diff - Diff the live version against a would-be applied version

SYNOPSIS
kubectl diff [OPTIONS]

DESCRIPTION
Diff configurations specified by file name or stdin between the current online configuration, and the configuration as it would be if applied.

The output is always YAML.

KUBECTL_EXTERNAL_DIFF environment variable can be used to select your own diff command. Users can use external commands with params too, example: KUBECTL_EXTERNAL_DIFF="colordiff -N -u"

By default, the "diff" command available in your path will be run with the "-u" (unified diff) and "-N" (treat absent files as empty) options.

Exit status: 0 No differences were found. 1 Differences were found. >1 Kubectl or diff failed with an error.

Note: KUBECTL_EXTERNAL_DIFF, if used, is expected to follow that convention.

OPTIONS
--concurrency=1
    Number of objects to process in parallel when diffing against the live version. Larger number = faster, but more memory, I/O and CPU over that shorter period of time.

--field-manager="kubectl-client-side-apply"
    Name of the manager used to track field ownership.

-f, --filename=[]
    Filename, directory, or URL to files contains the configuration to diff

--force-conflicts=false
    If true, server-side apply will force the changes against conflicts.

-k, --kustomize=""
    Process the kustomization directory. This flag can't be used together with -f or -R.

--prune=false
    Include resources that would be deleted by pruning. Can be used with -l and default shows all resources would be pruned

--prune-allowlist=[]
    Overwrite the default allowlist with for --prune

-R, --recursive=false
    Process the directory used in -f, --filename recursively. Useful when you want to manage related manifests organized within the same directory.

-l, --selector=""
    Selector (label query) to filter on, supports '=', '==', '!=', 'in', 'notin'.(e.g. -l key1=value1,key2=value2,key3 in (value3)). Matching objects must satisfy all of the specified label constraints.

--server-side=false
    If true, apply runs in the server instead of the client.

--show-managed-fields=false
    If true, include managed fields in the diff.

--show-secrets=false
    If true, do not mask secret values in the diff.

OPTIONS INHERITED FROM PARENT COMMANDS
--as=""
    Username to impersonate for the operation. User could be a regular user or a service account in a namespace.

--as-group=[]
    Group to impersonate for the operation, this flag can be repeated to specify multiple groups.

--as-uid=""
    UID to impersonate for the operation.

--as-user-extra=[]
    User extras to impersonate for the operation, this flag can be repeated to specify multiple values for the same key.

--cache-dir="/home/username/.kube/cache"
    Default cache directory

--certificate-authority=""
    Path to a cert file for the certificate authority

--client-certificate=""
    Path to a client certificate file for TLS

--client-key=""
    Path to a client key file for TLS

--cluster=""
    The name of the kubeconfig cluster to use

--context=""
    The name of the kubeconfig context to use

--disable-compression=false
    If true, opt-out of response compression for all requests to the server

--insecure-skip-tls-verify=false
    If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure

--kubeconfig=""
    Path to the kubeconfig file to use for CLI requests.

--kuberc=""
    Path to the kuberc file to use for preferences. This can be disabled by exporting KUBECTL_KUBERC=false feature gate or turning off the feature KUBERC=off.

--match-server-version=false
    Require server version to match client version

-n, --namespace=""
    If present, the namespace scope for this CLI request

--password=""
    Password for basic authentication to the API server

--profile="none"
    Name of profile to capture. One of (none|cpu|heap|goroutine|threadcreate|block|mutex|trace)

--profile-output="profile.pprof"
    Name of the file to write the profile to

--proxy-url=""
    Proxy URL to use for requests to the API server

--request-timeout="0"
    The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests.

-s, --server=""
    The address and port of the Kubernetes API server

--tls-server-name=""
    Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used

--token=""
    Bearer token for authentication to the API server

--user=""
    The name of the kubeconfig user to use

--username=""
    Username for basic authentication to the API server

--version=false
    --version, --version=raw prints version information and quits; --version=vX.Y.Z... sets the reported version

--warnings-as-errors=false
    Treat warnings received from the server as errors and exit with a non-zero exit code

EXAMPLE
      # Diff resources included in pod.json
      kubectl diff -f pod.json

      # Diff file read from stdin
      cat service.yaml | kubectl diff -f -

SEE ALSO
kubectl(1),

HISTORY
January 2015, Originally compiled by Eric Paris (eparis at redhat dot com) based on the kubernetes source material, but hopefully they have been automatically generated since!