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UKFast CLI

Build Status MIT licensed

This is the official UKFast command-line client, allowing for querying and controlling supported UKFast services.

The client utilises UKFast APIs to provide access to most service features. You should refer to the Getting Started section of the API documentation before proceeding below

Building from source

Install the dependencies, golang and make, then build from the Makefile.

# make

To copy to /usr/local/bin, as root or using sudo

# make install

Installation

The CLI is distributed as a single binary, and is available for Windows, Linux and Mac. This binary should be downloaded and placed into a directory included in your PATH. This would typically be /usr/local/bin on most Linux distributions

Pre-compiled binaries are available at Releases

Getting started

To get started, we will define a single environment variable to store our API key:

Bash:

export UKF_API_KEY="iqmxgom0kairfnxzcopte5hx"

PowerShell:

$env:UKF_API_KEY="iqmxgom0kairfnxzcopte5hx"

And away we go!

> ukfast safedns zone record show example.co.uk 3337874
+---------+--------------------+------+---------+---------------------------+----------+-----+
|   ID    |        NAME        | TYPE | CONTENT |        UPDATED AT         | PRIORITY | TTL |
+---------+--------------------+------+---------+---------------------------+----------+-----+
| 3337874 | test.example.co.uk | A    | 1.2.3.4 | 2019-03-19T16:33:55+00:00 |        0 |   0 |
+---------+--------------------+------+---------+---------------------------+----------+-----+

Configuration

There are two available methods for configuring the CLI; Environment variables and configuration file. Both of these methods are explained below.

Configuration File

The configuration file is read from $HOME/.ukfast{.extension} by default (extension being one of the viper supported formats such as yml, yaml, json, toml etc.). This path can be overridden with the --config flag.

The API key can be written to the configuration file:

> ukfast config set --api_key="123456789abcdefghijklmnopqrstuvw"

Check that this has been written:

> cat ~/.ukfast.yml 
api_key: 123456789abcdefghijklmnopqrstuvw

Values defined in the configuration file take precedence over environment variables.

Required

  • api_key: API key for interacting with UKFast APIs

Debug

  • api_timeout_seconds: (int) HTTP timeout for API requests. Default: 90
  • api_uri: (string) API URI. Default: api.ukfast.io
  • api_insecure: (bool) Specifies to ignore API certificate validation checks
  • api_debug: (bool) Specifies for debug messages to be output to stderr
  • api_pagination_perpage (int) Specifies the per-page for paginated requests

Environment variables

Environment variables can be used to configure/manipulate the CLI. These variables match the naming of directives in the configuration file defined above, however are uppercased and prefixed with UKF, such as UKF_API_KEY

Output Formatting

The output of all commands is determined by a single global flag --output / -o. In addition to output, there are several output modifier flags which are explained below.

Table (Default)

The default output format for the CLI is Table, which will be used when the value of the --output flag is table or unspecified:

> ukfast safedns zone record list example.co.uk
+---------+--------------------+------+-----------------------------------------------------------------------+---------------------------+----------+-------+
|   ID    |        NAME        | TYPE |                                CONTENT                                |        UPDATED AT         | PRIORITY |  TTL  |
+---------+--------------------+------+-----------------------------------------------------------------------+---------------------------+----------+-------+
| 3337865 | ns0.ukfast.net     | NS   | 185.226.220.128                                                       | 2019-03-19T16:31:48+00:00 |        0 |     0 |
| 3337868 | ns1.ukfast.net     | NS   | 185.226.221.128                                                       | 2019-03-19T16:31:48+00:00 |        0 |     0 |
| 3337871 | example.co.uk      | SOA  | ns0.ukfast.net support.ukfast.co.uk 2019031901 7200 3600 604800 86400 | 2019-03-19T16:31:48+00:00 |        0 | 86400 |
| 3337874 | test.example.co.uk | A    | 1.2.3.4                                                               | 2019-03-19T16:33:55+00:00 |        0 |     0 |
+---------+--------------------+------+-----------------------------------------------------------------------+---------------------------+----------+-------+

The Property Modifier is available for this format

List

Results can be output as a list using the list format:

> ukfast safedns zone record show example.co.uk 3337874 --output list
id         : 3337874
name       : test.example.co.uk
type       : A
content    : 1.2.3.4
updated_at : 2019-03-19T16:33:55+00:00
priority   : 0
ttl        : 0

The Property Modifier is available for this format

JSON

Results can be output in JSON using the json format:

> ukfast safedns zone record show example.co.uk 3337874 --output json
[{"id":3337874,"template_id":0,"name":"test.example.co.uk","type":"A","content":"1.2.3.4","updated_at":"2019-03-19T16:33:55+00:00","ttl":0,"priority":0}]

Value

Results can be output with a value or set of values using the value format:

> ukfast safedns zone record show example.co.uk 3337874 --output value
3337874 test.example.co.uk A 1.2.3.4 2019-03-19T16:33:55+00:00 0 0
> ukfast safedns zone record show example.co.uk 3337874 --output value --property id
3337874

The Property Modifier is available for this format

CSV

Results can be output as CSV using the csv format:

> ukfast safedns zone record show example.co.uk 3337874 --output csv
id,name,type,content,updated_at,priority,ttl
3337874,test.example.co.uk,A,1.2.3.4,2019-03-19T16:33:55+00:00,0,0

The Property Modifier is available for this format

Template

Results can be output using a supplied Golang template string using the template format in conjunction with output arguments, e.g.

> ukfast safedns zone record list example.co.uk --output template="Record name: {{ .Name }}, Type: {{ .Type }}"
Record name: ns0.ukfast.net, Type: NS
Record name: ns1.ukfast.net, Type: NS
Record name: example.co.uk, Type: SOA
Record name: test.example.co.uk, Type: A

JSON path

Results can be output via JSON Path using the jsonpath format in conjunction with output arguments, e.g.

> ukfast safedns zone record list example.co.uk --output jsonpath="{[*].name}"
example.co.uk example.co.uk example.co.uk test.example.co.uk

Output modifiers

Property

Some output formats support the --property output modifier.

Required properties can be specified with the --property format modifer flag:

> ukfast safedns zone record show example.co.uk 3337874 --output value --property name
test.example.co.uk

The property modifier accepts a comma-delimited list of property names, and is also repeatable:

> ukfast safedns zone record show example.co.uk 3337874 --output value --property id,name --property content
3337874 test.example.co.uk 1.2.3.4

The property modifier also accepts globbing e.g. *, some*, *thing

Filtering

When using list commands, filtering is available via the --filter flag. Additionally, optional operators are available.

Examples

--filter id=123
--filter id:lt=10

Additionally, the lk filter is inferred when a glob * is included in the filter value (when operator is omitted)

Sorting

When using list commands, sorting is available via the --sort flag.

Examples

--sort id
--sort id:desc

Updates

The CLI has self-update functionality, which can be invoked via the command update:

> ukfast update

This command in-place updates the CLI, with the old binary moved to ukfast.old (ukfast.old.exe on Windows), should roll-back be required.

Shell autocompletions

The CLI supports generating shell completions for the following shells:

  • Bash
  • Zsh
  • PowerShell

The commands at ukfast completion <shell: bash|zsh|powershell> provide help for installation on different platforms

eCloud VPC resources

eCloud VPC resource commands are available by default under the ecloud subcommand.

To display only VPC commands, the following environment variable can be set:

> export UKF_ECLOUD_VPC=true

To display only original commands, the following environment variable can be set:

> export UKF_ECLOUD=true