goss

package module
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 Go to latest Published: Jan 9, 2016 License: Apache-2.0 Imports: 18 Imported by: 3

README

Goss - Quick and Easy server validation

Build Status

Goss in 45 seconds

Note: For an even faster way of doing this, see: autoadd

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Table of Contents

Introduction

What is goss?

Goss is a serverspec-like tool for validating a server's configuration. It eases the process of generating tests by assuming the user already has a properly configured machine from which they can derive system state. Once the test suite is generated they can be executed on any other host for the full TDD experience.

Why use goss?
  • Goss is EASY! - Goss in 45 seconds
  • Goss is FAST! - small-medium test suits are near instantaneous, see benchmarks
  • Goss is SMALL! - single self-contained binary
  • Goss is UNIXY! - small, does one thing and does it well, chainable through pipes
Limitations

Currently goss only runs on Linux.

The following tests have limitations.

Package:

  • rpm
  • deb

Service:

  • systemd
  • sysV init
  • Upstart

Installation

curl -L https://github.com/aelsabbahy/goss/releases/download/v0.0.16/goss-linux-amd64 > /usr/local/bin/goss && chmod +x /usr/local/bin/goss

Usage

NAME:
   goss - Quick and Easy server validation

USAGE:
   goss [global options] command [command options] [arguments...]

VERSION:
   0.0.2

COMMANDS:
   validate, v  Validate system
   render, r    render gossfile after imports
   autoadd, aa  automatically add all matching resource to the test suite
   add, a       add a resource to the test suite
   help, h      Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --gossfile, -g "./goss.json" Goss file to read from / write to [$GOSS_FILE]
   --package                    Package type to use [rpm, deb]
   --help, -h                   show help
   --generate-bash-completion
   --version, -v                print the version
global options
-g gossfile

The gossfile file to use when reading/writing tests.

Example (default: ./goss.json):

$ goss validate
........

Count: 8 failed: 0

To run a different file (ex. goss_httpd.json):

$ goss -g goss_httpd.json validate
......

Count: 6 failed: 0
validate, v - Validate the system

validate runs the goss test suite on your server. Prints an rspec-like output of test results. Exists with status 0 on success, non-0 otherwise.

validate will look for a test suite in the following order:

  • stdin
  • -g flag (if provided)
  • ./goss.json

Success:

$ goss validate
..

Count: 2 failed: 0

Failure:

$ goss validate
.F
tcp:22: ip doesn't match, expect: 127.0.0.1 found: 0.0.0.0


Count: 2 failed: 1
$ echo $?
1

Pipe examples:


$ cat goss.json | goss validate
$ goss render | ssh remote-host 'goss validate'
$ curl -s https://static/or/dynamic/goss.json | goss validate
Flags
  • --format (output format)
  • --no-color (disable color)
autoadd, aa - Auto add all matching resources to test suite

automatically adds all existing resources matching the provided argument.

$ goss aa httpd
Adding to './goss.json':

{
    "name": "httpd",
    "installed": true,
    "versions": [
        "2.4.16"
    ]
}

Adding to './goss.json':

{
    "executable": "httpd",
    "running": true
}

Adding to './goss.json':

{
    "port": "tcp6:80",
    "listening": true,
    "ip": "0000:0000:0000:0000:0000:0000:0000:0000"
}

Adding to './goss.json':

{
    "service": "httpd",
    "enabled": true,
    "running": true
}

$ goss aa foobar
# no output

Will automatically add the following resources:

  • file - only if argument contains "/"
  • user
  • group
  • package
  • port
  • process - Also adding any ports it's listening to (if run as root)
  • service

Will NOT automatically add:

  • commands - for safety
  • dns
  • addr
add, a - Add system resource to test suite
Flags
--exclude-attr

Ignore attribute(s) matching the provided glob when adding a new resource, can be specified multiple times.

Examples:


# Flags for add:
#  --exclude-attr [--exclude-attr option --exclude-attr option]  Exclude the following attributes when adding a new resource

$ goss a user nobody
Adding User to './goss.json':

{
    "nobody": {
        "exists": true,
        "uid": "99",
        "gid": "99",
        "groups": [
            "nobody"
        ],
        "home": "/"
    }
}

$ goss a --exclude-attr uid user nobody
Adding User to './goss.json':

{
    "nobody": {
        "exists": true,
        "gid": "99",
        "groups": [
            "nobody"
        ],
        "home": "/"
    }
}

$ goss a --exclude-attr uid --exclude-attr gid user nobody
Adding User to './goss.json':

{
    "nobody": {
        "exists": true,
        "groups": [
            "nobody"
        ],
        "home": "/"
    }
}

$ goss a --exclude-attr '*' user nobody
Adding User to './goss.json':

{
    "nobody": {
        "exists": true
    }
}
package - Add a package

Adds the current state of a package to the goss file.

$ goss a package httpd
Adding to './goss.json':

{
    "name": "httpd",
    "installed": true,
    "versions": [
        "2.4.10"
    ]
}

$ goss a package foobar
Adding to './goss.json':

{
    "name": "foobar",
    "installed": false
}
Attributes
  • name (required)- Package name
  • installed (required) - Is it installed?
  • versions - Checks if defined versions are installed.
file - Add a file
$ goss a file /etc/passwd
Adding to './goss.json':

{
    "path": "/etc/passwd",
    "exists": true,
    "mode": "0644",
    "owner": "root",
    "group": "root",
    "filetype": "file",
    "contains": []
}

$ goss a file /etc/system-release
Adding to './goss.json':

{
    "path": "/etc/system-release",
    "exists": true,
    "mode": "0777",
    "owner": "root",
    "group": "root",
    "linked-to": "fedora-release",
    "filetype": "symlink",
    "contains": []
}
Attributes
  • path (required) - file/dir/symlink path
  • exists (required) - does it exists?
  • mode - file mode (ex 0644)
  • owner - name of owner
  • group - group that ownes the file
  • linked-to - symlink target
  • filetype - file, symlink, directory
  • contains - checks if file contents contains these patterns
port - Add a port

Checks if a port is listening

$ goss a port 22
Adding to './goss.json':

{
    "port": "tcp:22",
    "listening": true,
    "ip": "0.0.0.0"
}

$ goss a port udp:999
Adding to './goss.json':

{
    "port": "udp:999",
    "listening": false
}
Attributes
  • port (required) - network:port_num
  • listening (required) - is the network:port_num listening?
  • ip - what IP is it listening on
service - Add a service

Currently only supports init and systemd.

$ goss a service sshd
Adding to './goss.json':

{
    "service": "sshd",
    "enabled": true,
    "running": true
}
Attributes
  • service (required) - name of service
  • enabled (required) - will start on startup
  • running (required) - is currently running
user - Add a user
$ goss a user nfsnobody
Adding to './goss.json':

{
    "username": "nfsnobody",
    "exists": true,
    "uid": "65534",
    "gid": "65534",
    "groups": [
        "nfsnobody"
    ],
    "home": "/var/lib/nfs"
}

$ goss a user foobar
Adding to './goss.json':

{
    "username": "foobar",
    "exists": false
}
Attributes
  • username (required) - name of user
  • exists (required) - user exists
  • uid - uid of user
  • gid - gid of user
  • groups - Checks if user is a member of the defined groups.
  • home - user home directory
group - Add a group
$ goss a group nfsnobody
Adding to './goss.json':

{
    "groupname": "nfsnobody",
    "exists": true,
    "gid": "65534"
}

$ goss a group foobar
Adding to './goss.json':

{
    "groupname": "foobar",
    "exists": false
}
Attributes
  • groupname (required) - name of group
  • exists (required) - does the group exist
  • gid - gid of group
command - Add a command

records the output and exit status for a command

$ goss a command go version
Adding to './goss.json':

{
    "command": "go version",
    "exit-status": "0",
    "stdout": [
        "go version go1.5 linux/amd64"
    ],
    "stderr": []
}

$ goss a command lksdjflksad
Adding to './goss.json':

{
    "command": "lksdjflksad",
    "exit-status": "127",
    "stdout": [],
    "stderr": [
        "sh: lksdjflksad: command not found"
    ]
}
Attributes
  • command (required) - command to execute
  • exit-status - exit status
  • stdout - checks if stdout contains these patterns
  • stderr - checks if stderr contains these patterns
dns - Add a dns lookup

Validates that the provided address is resolveable and the addrs it resolves to.

goss a dns localhost
Adding to './goss.json':

{
    "host": "localhost",
    "resolveable": true,
    "addrs": [
        "127.0.0.1",
        "::1"
    ]
}

Adding to './goss.json':

{
    "host": "foobar",
    "resolveable": false
}
Attributes
  • host (required) - hostname to lookup
  • resolveable (required) - is it resolvable
  • addrs - checks if resolved addresses contains these entries
process - Add a process running check

Checks if a process by this name is running.

$ goss a process chrome
Adding to './goss.json':

{
    "executable": "chrome",
    "running": true
}

$ goss a process foobar
Adding to './goss.json':

{
    "executable": "foobar",
    "running": false
}
Attributes
  • executable (required) - executable name
  • running (required) - is it currently running
goss - Add a goss file import

Allows you to import another goss file from this one.

$ goss -g goss_httpd.json a package httpd
Adding to 'goss_httpd.json':

{
    "name": "httpd",
    "installed": true,
    "versions": [
        "2.4.10"
    ]
}

$ goss a goss goss_httpd.json
Adding to './goss.json':

{
    "path": "goss_httpd.json"
}
Attributes
  • path (required) - path of goss file
render, r - Render gossfile after importing all referenced gossfiles
$ cat goss_httpd.json
{
    "packages": [
        {
            "name": "httpd",
            "installed": true,
            "versions": [
                "2.4.10"
            ]
        }
    ]
}

$ cat goss.json
{
    "gossfiles": [
        {
            "path": "goss_httpd.json"
        }
    ]
}

$ goss -g goss.json render
{
    "packages": [
        {
            "name": "httpd",
            "installed": true,
            "versions": [
                "2.4.10"
            ]
        }
    ]
}
Patterns

For the attributes that use patterns (ex. file, command output), each pattern is checked against the attribute string, the type of patterns are:

  • "string" - checks if any line contain string.
  • "!string" - inverse of above, checks that no line contains string
  • "/regex/" - verifies that line contains regex
  • "!/regex/" - inverse of above, checks that no line contains regex
$ cat /tmp/test.txt
foo
!foo
/foo


$ cat goss.json
{
    "files": [
        {
            "path": "/tmp/test.txt",
            "exists": true,
            "contains": [
                "foo",
                "/fo./",
                "!foo",
                "!/fo./",
                "\\!foo",
                "!lksdajflka",
                "!/lksdajflka/"
            ]
        }
    ]
}

$ goss validate
.F
/tmp/test.txt: contains: patterns not found: [!foo, !/fo./]


Count: 2 failed: 1

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AppendResource 

func AppendResource(fileName, resourceName, key string, c *cli.Context) error

func AutoAppendResource added in v0.0.2 

func AutoAppendResource(fileName, key string, c *cli.Context) error

func RenderJSON 

func RenderJSON(filePath string) string

func Run 

func Run(c *cli.Context, startTime time.Time)

func WriteJSON 

func WriteJSON(filePath string, configJSON ConfigJSON) error

Types

type ConfigJSON 

type ConfigJSON struct {
	Files     resource.FileMap     `json:"file,omitempty"`
	Packages  resource.PackageMap  `json:"package,omitempty"`
	Addrs     resource.AddrMap     `json:"addr,omitempty"`
	Ports     resource.PortMap     `json:"port,omitempty"`
	Services  resource.ServiceMap  `json:"service,omitempty"`
	Users     resource.UserMap     `json:"user,omitempty"`
	Groups    resource.GroupMap    `json:"group,omitempty"`
	Commands  resource.CommandMap  `json:"command,omitempty"`
	DNS       resource.DNSMap      `json:"dns,omitempty"`
	Processes resource.ProcessMap  `json:"process,omitempty"`
	Gossfiles resource.GossfileMap `json:"gossfile,omitempty"`
}

func NewConfigJSON added in v0.0.4 

func NewConfigJSON() *ConfigJSON

func ReadJSON 

func ReadJSON(filePath string) ConfigJSON

func ReadJSONData 

func ReadJSONData(data []byte) ConfigJSON

func (*ConfigJSON) Resources 

func (c *ConfigJSON) Resources() []resource.Resource

func (*ConfigJSON) String 

func (c *ConfigJSON) String() string

Source Files

View all Source files

Directories

Path Synopsis
cmd
goss
group

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