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https://github.com/rgs1/zk_shell
A powerful & scriptable shell for Apache ZooKeeper
https://github.com/rgs1/zk_shell
Last synced: 12 days ago
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A powerful & scriptable shell for Apache ZooKeeper
- Host: GitHub
- URL: https://github.com/rgs1/zk_shell
- Owner: rgs1
- License: apache-2.0
- Created: 2013-11-03T00:41:27.000Z (about 11 years ago)
- Default Branch: master
- Last Pushed: 2023-11-01T13:55:48.000Z (about 1 year ago)
- Last Synced: 2024-10-14T18:53:54.379Z (about 1 month ago)
- Language: Python
- Homepage:
- Size: 618 KB
- Stars: 189
- Watchers: 13
- Forks: 41
- Open Issues: 4
-
Metadata Files:
- Readme: README.rst
- Changelog: CHANGES.rst
- Contributing: CONTRIBUTING.rst
- License: LICENSE
Awesome Lists containing this project
README
zk-shell
========
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**Table of Contents**
- `tl;dr <#tldr>`__
- `Installing <#installing>`__
- `Usage <#usage>`__
- `Dependencies <#dependencies>`__
tl;dr
~~~~~
A powerful & scriptable shell for `Apache
ZooKeeper `__
Installing
~~~~~~~~~~
As Dockerfile:
::
$ docker build . -f Dockerfile -t zk-shell:1.3.3
From PyPI:
::
$ pip install zk-shell
Or running from the source:
::
# Kazoo is needed
$ pip install kazoo
$ git clone https://github.com/rgs1/zk_shell.git
$ cd zk_shell
$ export ZKSHELL_SRC=1; bin/zk-shell
Welcome to zk-shell (0.99.04)
(DISCONNECTED) />
You can also build a self-contained PEX file:
::
$ pip install pex
$ pex -v -e zk_shell.cli -o zk-shell.pex .
More info about PEX `here `__.
Usage
~~~~~
Docker Version
::
$ docker run -it zk-shell:1.3.3
and use the connect command to connect to your zookeeper instance
::
$ zk-shell localhost:2181
(CONNECTED) /> ls
zookeeper
(CONNECTED) /> create foo 'bar'
(CONNECTED) /> get foo
bar
(CONNECTED) /> cd foo
(CONNECTED) /foo> create ish 'barish'
(CONNECTED) /foo> cd ..
(CONNECTED) /> ls foo
ish
(CONNECTED) /> create temp- 'temp' true true
(CONNECTED) /> ls
zookeeper foo temp-0000000001
(CONNECTED) /> rmr foo
(CONNECTED) />
(CONNECTED) /> tree
.
├── zookeeper
│ ├── config
│ ├── quota
Line editing and command history is supported via readline (if readline
is available). There's also autocomplete for most commands and their
parameters.
Individual files can be copied between the local filesystem and
ZooKeeper. Recursively copying from the filesystem to ZooKeeper is
supported as well, but not the other way around since znodes can have
content and children.
::
(CONNECTED) /> cp file:///etc/passwd zk://localhost:2181/passwd
(CONNECTED) /> get passwd
(...)
unbound:x:992:991:Unbound DNS resolver:/etc/unbound:/sbin/nologin
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
Copying between one ZooKeeper cluster to another is supported, too:
::
(CONNECTED) /> cp zk://localhost:2181/passwd zk://othercluster:2183/mypasswd
Copying between a ZooKeeper cluster and JSON files is supported as well:
::
(CONNECTED) /> cp zk://localhost:2181/something json://!tmp!backup.json/ true true
Mirroring paths to between clusters or JSON files is also supported.
Mirroring replaces the destination path with the content and structure
of the source path.
::
(CONNECTED) /> create /source/znode1/znode11 'Hello' false false true
(CONNECTED) /> create /source/znode2 'Hello' false false true
(CONNECTED) /> create /target/znode1/znode12 'Hello' false false true
(CONNECTED) /> create /target/znode3 'Hello' false false true
(CONNECTED) /> tree
.
├── target
│ ├── znode3
│ ├── znode1
│ │ ├── znode12
├── source
│ ├── znode2
│ ├── znode1
│ │ ├── znode11
├── zookeeper
│ ├── config
│ ├── quota
(CONNECTED) /> mirror /source /target
Are you sure you want to replace /target with /source? [y/n]:
y
Mirroring took 0.04 secs
(CONNECTED) /> tree
.
├── target
│ ├── znode2
│ ├── znode1
│ │ ├── znode11
├── source
│ ├── znode2
│ ├── znode1
│ │ ├── znode11
├── zookeeper
│ ├── config
│ ├── quota
(CONNECTED) /> create /target/znode4 'Hello' false false true
(CONNECTED) /> mirror /source /target false false true
Mirroring took 0.03 secs
(CONNECTED) />
Debugging watches can be done with the watch command. It allows
monitoring all the child watches that, recursively, fire under :
::
(CONNECTED) /> watch start /
(CONNECTED) /> create /foo 'test'
(CONNECTED) /> create /bar/foo 'test'
(CONNECTED) /> rm /bar/foo
(CONNECTED) /> watch stats /
Watches Stats
/foo: 1
/bar: 2
/: 1
(CONNECTED) /> watch stop /
Searching for paths or znodes which match a given text can be done via
find:
::
(CONNECTED) /> find / foo
/foo2
/fooish/wayland
/fooish/xorg
/copy/foo
Or a case-insensitive match using ifind:
::
(CONNECTED) /> ifind / foo
/foo2
/FOOish/wayland
/fooish/xorg
/copy/Foo
Grepping for content in znodes can be done via grep:
::
(CONNECTED) /> grep / unbound true
/passwd: unbound:x:992:991:Unbound DNS resolver:/etc/unbound:/sbin/nologin
/copy/passwd: unbound:x:992:991:Unbound DNS resolver:/etc/unbound:/sbin/nologin
Or via igrep for a case-insensitive version.
Non-interactive mode can be used passing commands via ``--run-once``:
::
$ zk-shell --run-once "create /foo 'bar'" localhost
$ zk-shell --run-once "get /foo" localhost
bar
Or piping commands through stdin:
::
$ echo "get /foo" | zk-shell --run-from-stdin localhost
bar
It's also possible to connect using an SSH tunnel, by specifying a host
to use:
::
$ zk-shell --tunnel ssh-host zk-host
Dependencies
~~~~~~~~~~~~
- Python 2.7, 3.3, 3.4, 3.5 or 3.6
- Kazoo >= 2.2
Testing and Development
~~~~~~~~~~~~~~~~~~~~~~~
Please see `CONTRIBUTING.rst `__.