gcloud beta topic formats - resource formats supplementary help
(BETA) Most gcloud commands return a list of resources on success. By default they are pretty-printed on the standard output. The --format=NAME[ATTRIBUTES](PROJECTION) and --filter=EXPRESSION flags along with projections can be used to format and change the default output to a more meaningful result.
Use the --format flag to change the default output format of a command. Resource formats are described in detail below.
Use the --filter flag to select resources to be listed. For details run $ gcloud topic filters.
Use resource-keys to reach resource items through a unique path of names from the root. For details run $ gcloud topic resource-keys.
Use projections to list a subset of resource keys in a resource. For details run $ gcloud topic projections.
Note: To refer to a list of fields you can sort, filter, and format by for each resource, you can run a list command with the format set to text or json. For example, $ gcloud compute instances list --limit=1 --format=text.
To work through an interactive tutorial about using the filter and format flags instead, see: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/cloud-shell-tutorials&page=editor&tutorial=cloudsdk/tutorial.md
A format expression is used to change the default output format of a command. Many output formats are available; some for pretty printing human-readable output and others for returning machine-readable output.
A format expression has 3 parts:
- NAME
name
- ATTRIBUTES
[ [no-]attribute-name[=value] [, ... ] ]
- PROJECTION
( resource-key [, ...] )
NAME is required, ATTRIBUTES are optional, and PROJECTIONS may be required for some formats. Unknown attribute names are silently ignored.
Each gcloud list command has a default format expression. The --format flag can alter or replace the default. For example,
--format="[box]"
adds box decorations to a default table, and
--format=json
lists the resource in json format.
The formats and format specific attributes are:
- config
A dictionary of dictionaries in config style.
The format attributes are:
- export
Display the dictionary as a list of system specific environment export commands.
- unset
Display the dictionary as a list of system specific environment unset commands.
- csv
Comma Separated Values http://www.ietf.org/rfc/rfc4180.txt with no keys. This format requires a projection to define the values to be printed.
To use \n or \t as an attribute value please escape the \ with your shell's escape sequence, example separator="\\n" for bash.
The format attributes are:
- delimiter="string"
The string printed between list value items, default ";".
- no-heading
Disables the initial key name heading record.
- separator="string"
The string printed between values, default ",".
- terminator="string"
The string printed after each record, default "\n" (newline).
- default
An alias for the yaml format. To override use gcloud config set core/default_format property.
- diff
A unified diff of the first two projection columns.
The format attributes are:
- format
The format of the diffed resources. Each resource is converted to this format and the diff of the converted resources is displayed. The default is 'flattened'.
- disable
Disables formatted output and does not consume the resources.
- flattened
A flattened tree. Each output line contains one key:value pair.
The format attributes are:
- no-pad
Don't print space after the separator. The default adjusts the space to align the values into the same output column. Use no-pad for comparing resource outputs.
- separator=SEPARATOR
Print SEPARATOR between the key and value. The default is ": ".
- get
Equivalent to the value[no-transforms] format. Default transforms are not applied to the displayed values.
- json
JSON http://www.json.org, JavaScript Object Notation.
The format attributes are:
- no-undefined
Does not display resource data items with null values.
- list
An ordered list of items.
The format attributes are:
- always-display-title
Display the title even if there are no records.
- compact
Display all items in a record on one line.
- multi
Each projection key must have a subformat defined by the :format=FORMAT-STRING attribute. For example,
`--format="multi(data:format=json, info:format='table[box](a, b, c)')"`
formats the data field as JSON and the info field as a boxed table.
The format attributes are:
- separator
Separator string to print between each format. If multiple resources are provided, the separator is also printed between each resource.
- none
Disables formatted output and consumes the resources.
- object
Bypasses JSON-serialization and prints the object representation of each resource.
The format attributes are:
- separator
The line printed between resources.
- terminator
The line printed after each resource.
- table
Aligned left-adjusted columns with optional title, column headings and sorting. This format requires a projection to define the table columns. The default column headings are the disambiguated right hand components of the column keys in ANGRY_SNAKE_CASE. For example, the projection keys (first.name, last.name) produce the default column heading ('NAME', 'LAST_NAME').
If --page-size=N is specified then output is grouped into tables with at most N rows. Headings, alignment and sorting are done per-page. The title, if any, is printed before the first table.
If screen reader option is True, you may observe flattened list output instead of a table with columns. Please refer to $ gcloud topic accessibility to turn it off.
The format attributes are:
- all-box
Prints a box around the entire table and each cell, including the title if any.
- box
Prints a box around the entire table and the title cells if any.
- format=FORMAT-STRING
Prints the key data indented by 4 spaces using FORMAT-STRING which can reference any of the supported formats.
- no-heading
Disables the column headings.
- margin=N
Right hand side padding when one or more columns are wrapped.
- pad=N
Sets the column horizontal pad to N spaces. The default is 1 for box, 2 otherwise.
- title=TITLE
Prints a centered TITLE at the top of the table, within the table box if box is enabled.
- text
An alias for the flattened format.
- value
CSV with no heading and <TAB> separator instead of <COMMA>. Used to retrieve individual resource values. This format requires a projection to define the value(s) to be printed.
To use \n or \t as an attribute value please escape the \ with your shell's escape sequence, example separator="\\n" for bash.
The format attributes are:
- delimiter="string"
The string printed between list value items, default ";".
- quote
"..." quote values that contain delimiter, separator or terminator strings.
- separator="string"
The string printed between values, default "\t" (tab).
- terminator="string"
The string printed after each record, default "\n" (newline).
- yaml
YAML http://www.yaml.org, YAML ain't markup language.
The format attributes are:
- null="string"
Display string instead of null for null/None values.
- no-undefined
Does not display resource data items with null values.
- version=VERSION
Prints using the specified YAML version, default 1.2.
All formats have these attributes:
- disable
Disables formatted output and does not consume the resources.
- json-decode
Decodes string values that are JSON compact encodings of list and dictionary objects. This may become the default.
- pager
If True, sends output to a pager.
- private
Disables log file output. Use this for sensitive resource data that should not be displayed in log files. Explicit command line IO redirection overrides this attribute.
- transforms
Apply projection transforms to the resource values. The default is format specific. Use no-transforms to disable.
List a table of compute instance resources sorted by name with box decorations and title Instances:
$ gcloud compute instances list \ --format="table[box,title=Instances](name:sort=1, \ zone:label=zone, status)"
List a nested table of the quotas of a region:
$ gcloud compute regions describe us-central1 \ --format="table(quotas:format='table(metric,limit,usage)')"
Print a flattened list of global quotas in CSV format:
$ gcloud compute project-info describe --flatten="quotas[]" \ --format="csv(quotas.metric,quotas.limit,quotas.usage)"
List the disk interfaces for all compute instances as a compact comma separated list:
$ gcloud compute instances list \ --format="value(disks[].interface.list())"
List the URIs for all compute instances:
$ gcloud compute instances list --format="value(uri())"
List all compute instances with their creation timestamps displayed according to the local timezone:
$ gcloud compute instances list \ --format="table(name,creationTimestamp.date(tz=LOCAL))"
List the project authenticated user email address:
$ gcloud info --format="value(config.account)"
List resources filtered on repeated fields by projecting subfields on a repeated message:
$ gcloud alpha genomics readgroupsets list \ --format="default(readGroups[].name)"
Return the scope of the current instance:
$ gcloud compute zones list --format="value(selfLink.scope())"
selfLink is a fully qualified name. (e.g. 'https://www.googleapis.com/compute/v1/projects/my-project/zones/us-central1-a') The previous example returns a list of just the names of each zone (e.g. 'us-central1-a'). This is because selfLink.scope() grabs the last part of the URL segment. To extract selfLink starting from /projects and return the scope of the current instance:
$ gcloud compute zones list \ --format="value(selfLink.scope(projects))"
List all scopes enabled for a Compute Engine instance and flatten the multi-valued resource:
$ gcloud compute instances list \ --format="flattened(name,serviceAccounts[].email,serviceAccounts\ [].scopes[].basename())"
Display a multi-valued resource's service account keys with the corresponding service account, extracting just the first '/' delimited part with segment(0):
$ gcloud iam service-accounts keys list \ --iam-account=svc-2-123@test-minutia-123.iam.gserviceaccount.com\ --project=test-minutia-123 \ --format="table(name.scope(serviceAccounts).segment(0):label='se\ rvice Account',name.scope(keys):label='keyID',validAfterTime)"
The last example returns a table with service account names without their full paths, keyID and validity.
This command is currently in beta and might change without notice. These variants are also available:
$ gcloud topic formats
$ gcloud alpha topic formats