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zk_shell 1.0.03

A Python - Kazoo based - shell for ZooKeeper

# zk-shell [![Build Status] https://travis-ci.org/rgs1/zk_shell.svg?branch=master]https://travis-ci.org/rgs1/zk_shell [![Coverage Status]https://coveralls.io/repos/rgs1/zk_shell/badge.png?branch=master]https://coveralls.io/r/rgs1/zk_shell?branch=master

**Table of Contents**

- [tl;dr](#tldr)
- [Installing](#installing)
- [Usage](#usage)
- [Dependencies](#dependencies)

### tl;dr ###

A powerful & scriptable shell for [Apache ZooKeeper]http://zookeeper.apache.org/ "ZooKeeper")

### Installing ###

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 -s . -v -e zk_shell.cli -o zk-shell.pex

```

More info about PEX [here]https://pex.readthedocs.org "PEX").

### Usage ###

```
$ 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
```

### Dependencies ###

* Python 2.7, 3.3 or 3.4
* Kazoo >= 2.0.0

### Testing and Development ###

Please see [CONTRIBUTING.md]CONTRIBUTING.md).
 
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