InfluxDB-CLI
Ruby CLI for InfluxDB is a simple Ruby console (empowered with Pry) connected to an InfluxDB server using given parameters. In order to connect to InfluxDB, it uses influxdb-ruby, so you can access any available method from influxdb-ruby in the console through the db variable i.e.: db.write_point(name, data), db.query('SELECT value FROM response_times') etc.
Installation
gem install influxdb-cli
Options
$ influxdb-cli help db
Usage:
influxdb-cli db
Options:
[--host=HOST] # Hostname
# Default: localhost
[--port=PORT] # Port
# Default: 8086
-u, [--username=USERNAME] # Username
# Default: root
-p, [--password=PASSWORD] # Password
# Default: root
-d, [--database=DATABASE] # Database
# Default: db
[--pretty=PRETTY] # Human readable times (UTC)
[--ssl], [--no-ssl] # Connect using TLS/SSL
[--time-precision=TIME_PRECISION] # Time precision can be set to either "s" for seconds, "ms" for milliseconds, or "u" for microseconds
# Default: s
Usage
Connect to a database
$ influxdb-cli
Connecting to {"host"=>"localhost", "port"=>8086, "username"=>"root", "password"=>"root", "database"=>"db"}
✔ ready
or
$ influxdb-cli -u user -p password -d database --host sandbox.influxdb.org --port 9061
Connecting to {"host"=>"sandbox.influxdb.org", "port"=>"9061", "username"=>"username", "password"=>"password", "database"=>"database"}
✔ ready
InfluxDB Playground :metal:
Create a database and user
2.0.0 (main)> db.create_database 'db'
2.0.0 (main)> db.create_database_user 'db', 'root', 'root'
List databases
2.0.0 (main)> db.get_database_list
Switch databases
2.0.0 (main)> use other_database
2.0.0 (main)> db.database
=> "other_database"
Write a point
2.0.0 (main)> db.write_point('tests', { message: 'Hello Pablo' })
2.0.0 (main)> SELECT * FROM tests
+---------------+-----------------+-------------+
| tests |
+---------------+-----------------+-------------+
| time | sequence_number | message |
+---------------+-----------------+-------------+
| 1387287723816 | 1 | Hello Pablo |
+---------------+-----------------+-------------+
1 result found for tests
Query duration: 0.0s
Return the last point from every time series in the database
2.0.0 (main)> SELECT * FROM /.*/ LIMIT 1
or to get only the name from every time series in the database.
2.0.0 (main)> db.query('SELECT * FROM /.*/ LIMIT 1').keys
=> [
[0] "tests",
[1] "response_times",
[2] "deploys",
[3] "..."
]
Query with a tabularized output
2.0.0 (main)> SELECT * FROM deploys
+---------------+-----------------+-----------------+--------+-----------------+-------------------+----------+
| deploys |
+---------------+-----------------+-----------------+--------+-----------------+-------------------+----------+
| time | sequence_number | application | branch | latest_revision | previous_revision | stage |
+---------------+-----------------+-----------------+--------+-----------------+-------------------+----------+
| ... | ... | ... | ... | ... | ... | ... |
+---------------+-----------------+-----------------+--------+-----------------+-------------------+----------+
1 result found for deploys
Query duration: 0.49s
Query with a Ruby Hash output
2.0.0 (main)> db.query('SELECT * FROM deploys')
=> {
"deploys" => [
[ 0] {
"time" => "...",
"sequence_number" => "...",
"application" => "...",
"branch" => "...",
"latest_revision" => "...",
"previous_revision" => "...",
"stage" => "..."
},
Other methods
2.0.0 (main)> db.write_point(name, data)
2.0.0 (main)> db.get_database_list
2.0.0 (main)> ls -q db
InfluxDB::Client#methods:
_write create_database database= delete_database_user get_database_user_list password port= queue= username
alter_database_privilege create_database_user delete_cluster_admin get_cluster_admin_list host password= query update_cluster_admin username=
create_cluster_admin database delete_database get_database_list host= port queue update_database_user write_point
instance variables: @database @host @http @password @port @queue @username
Pry commands
As influxdb-cli is empowered with Pry, all Pry awesome commands are available in the console.
show-source
2.0.0 (main)> show-source InfluxDB::Client#query
From: /Users/pablo/.gem/ruby/2.0.0/gems/influxdb-0.0.11/lib/influxdb/client.rb @ line 152:
Owner: InfluxDB::Client
Visibility: public
Number of lines: 17
def query(query)
url = full_url("db/#{@database}/series", "q=#{query}")
url = URI.encode url
response = @http.request(Net::HTTP::Get.new(url))
series = JSON.parse(response.body)
if block_given?
series.each { |s| yield s['name'], denormalize_series(s) }
else
series.reduce({}) do |col, s|
name = s['name']
denormalized_series = denormalize_series s
col[name] = denormalized_series
col
end
end
end
show-doc
2.0.0 (main)> show-doc InfluxDB::Client#initialize
From: /Users/pablo/.gem/ruby/2.0.0/gems/influxdb-0.0.11/lib/influxdb/client.rb @ line 13:
Owner: InfluxDB::Client
Visibility: private
Signature: initialize(*args)
Number of lines: 20
Initializes a new Influxdb client
=== Examples:
Influxdb.new # connect to localhost using root/root
# as the credentials and doesn't connect to a db
Influxdb.new 'db' # connect to localhost using root/root
# as the credentials and 'db' as the db name
Influxdb.new :username => 'username' # override username, other defaults remain unchanged
Influxdb.new 'db', :username => 'username' # override username, use 'db' as the db name
=== Valid options in hash
+:hostname+:: the hostname to connect to
+:port+:: the port to connect to
+:username+:: the username to use when executing commands
+:password+:: the password associated with the username