namespace

Documentation

Overview

Command namespace resolves and manages names in the Vanadium namespace.

The namespace roots are set from the command line via --v23.namespace.root command line option or from environment variables that have a name starting with V23_NAMESPACE, e.g. V23_NAMESPACE, V23_NAMESPACE_2, V23_NAMESPACE_GOOGLE, etc. The command line options override the environment.

Usage:

namespace [flags] <command>

The namespace commands are:

glob        Returns all matching entries from the namespace
mount       Adds a server to the namespace
unmount     Removes a server from the namespace
resolve     Translates a object name to its object address(es)
resolvetomt Finds the address of the mounttable that holds an object name
permissions Manipulates permissions on an entry in the namespace
delete      Deletes a name from the namespace
help        Display help for commands or topics

The global flags are:

-v23.namespace.root=[/(dev.v.io:r:vprod:service:mounttabled)@ns.dev.v.io:8101]
  local namespace root; can be repeated to provided multiple roots

-alsologtostderr=true
  log to standard error as well as files
-log_backtrace_at=:0
  when logging hits line file:N, emit a stack trace
-log_dir=
  if non-empty, write log files to this directory
-logtostderr=false
  log to standard error instead of files
-max_stack_buf_size=4292608
  max size in bytes of the buffer to use for logging stack traces
-metadata=<just specify -metadata to activate>
  Displays metadata for the program and exits.
-stderrthreshold=2
  logs at or above this threshold go to stderr
-time=false
  Dump timing information to stderr before exiting the program.
-v=0
  log level for V logs
-v23.credentials=
  directory to use for storing security credentials
-v23.i18n-catalogue=
  18n catalogue files to load, comma separated
-v23.proxy=
  object name of proxy service to use to export services across network
  boundaries
-v23.tcp.address=
  address to listen on
-v23.tcp.protocol=wsh
  protocol to listen with
-v23.vtrace.cache-size=1024
  The number of vtrace traces to store in memory.
-v23.vtrace.collect-regexp=
  Spans and annotations that match this regular expression will trigger trace
  collection.
-v23.vtrace.dump-on-shutdown=true
  If true, dump all stored traces on runtime shutdown.
-v23.vtrace.sample-rate=0
  Rate (from 0.0 to 1.0) to sample vtrace traces.
-v23.vtrace.v=0
  The verbosity level of the log messages to be captured in traces
-vmodule=
  comma-separated list of globpattern=N settings for filename-filtered logging
  (without the .go suffix).  E.g. foo/bar/baz.go is matched by patterns baz or
  *az or b* but not by bar/baz or baz.go or az or b.*
-vpath=
  comma-separated list of regexppattern=N settings for file pathname-filtered
  logging (without the .go suffix).  E.g. foo/bar/baz.go is matched by patterns
  foo/bar/baz or fo.*az or oo/ba or b.z but not by foo/bar/baz.go or fo*az

Namespace glob - Returns all matching entries from the namespace

Returns all matching entries from the namespace.

Usage:

namespace glob [flags] <pattern>

<pattern> is a glob pattern that is matched against all the names below the specified mount name.

The namespace glob flags are:

-l=false
  Long listing format.

Namespace mount - Adds a server to the namespace

Adds server <server> to the namespace with name <name>.

Usage:

namespace mount [flags] <name> <server> <ttl>

<name> is the name to add to the namespace. <server> is the object address of the server to add. <ttl> is the TTL of the new entry. It is a decimal number followed by a unit suffix (s, m, h). A value of 0s represents an infinite duration.

Namespace unmount - Removes a server from the namespace

Removes server <server> with name <name> from the namespace.

Usage:

namespace unmount [flags] <name> <server>

<name> is the name to remove from the namespace. <server> is the object address of the server to remove.

Namespace resolve

Translates a object name to its object address(es).

Usage:

namespace resolve [flags] <name>

<name> is the name to resolve.

The namespace resolve flags are:

-insecure=false
  Insecure mode: May return results from untrusted servers and invoke Resolve
  on untrusted mounttables
-s=false
  True to perform a shallow resolution

Namespace resolvetomt - Finds the address of the mounttable that holds an object name

Finds the address of the mounttable that holds an object name.

Usage:

namespace resolvetomt [flags] <name>

<name> is the name to resolve.

The namespace resolvetomt flags are:

-insecure=false
  Insecure mode: May return results from untrusted servers and invoke Resolve
  on untrusted mounttables

Namespace permissions - Manipulates permissions on an entry in the namespace

Commands to get and set the permissions on a name - controlling the blessing names required to resolve the name.

The permissions are provided as an JSON-encoded version of the Permissions type defined in v.io/v23/security/access/types.vdl.

Usage:

namespace permissions [flags] <command>

The namespace permissions commands are:

get         Gets permissions on a mount name
set         Sets permissions on a mount name

Namespace permissions get - Gets permissions on a mount name

Get retrieves the permissions on the usage of a name.

The output is a JSON-encoded Permissions object (defined in v.io/v23/security/access/types.vdl).

Usage:

namespace permissions get [flags] <name>

<name> is a name in the namespace.

Namespace permissions set - Sets permissions on a mount name

Set replaces the permissions controlling usage of a mount name.

Usage:

namespace permissions set [flags] <name> <permissions>

<name> is the name on which permissions are to be set.

<permissions> is the path to a file containing a JSON-encoded Permissions object (defined in v.io/v23/security/access/types.vdl), or "-" for STDIN.

Namespace delete - Deletes a name from the namespace

Deletes a name from the namespace.

Usage:

namespace delete [flags] <name>

<name> is a name to delete.

The namespace delete flags are:

-r=false
  Delete all children of the name in addition to the name itself.

Namespace help - Display help for commands or topics

Help with no args displays the usage of the parent command.

Help with args displays the usage of the specified sub-command or help topic.

"help ..." recursively displays help for all commands and topics.

Usage:

namespace help [flags] [command/topic ...]

[command/topic ...] optionally identifies a specific sub-command or help topic.

The namespace help flags are:

-style=compact
  The formatting style for help output:
     compact   - Good for compact cmdline output.
     full      - Good for cmdline output, shows all global flags.
     godoc     - Good for godoc processing.
     shortonly - Only output short description.
  Override the default by setting the CMDLINE_STYLE environment variable.
-width=<terminal width>
  Format output to this target width in runes, or unlimited if width < 0.
  Defaults to the terminal width if available.  Override the default by setting
  the CMDLINE_WIDTH environment variable.