Class: Kitchen::Transport::Base::Connection
- Inherits:
-
Object
- Object
- Kitchen::Transport::Base::Connection
- Includes:
- Logging
- Defined in:
- lib/kitchen/transport/base.rb
Overview
A Connection instance can be generated and re-generated, given new connection details such as connection port, hostname, credentials, etc. This object is responsible for carrying out the actions on the remote host such as executing commands, transferring files, etc.
Direct Known Subclasses
Instance Method Summary collapse
-
#close ⇒ Object
Closes the session connection, if it is still active.
-
#execute(command) ⇒ Object
Execute a command on the remote host.
-
#execute_with_retry(command, retryable_exit_codes = [], max_retries = 1, wait_time = 30) ⇒ Object
Execute a command on the remote host and retry.
-
#initialize(options = {}) {|self| ... } ⇒ Connection
constructor
Create a new Connection instance.
-
#login_command ⇒ LoginCommand
Builds a LoginCommand which can be used to open an interactive session on the remote host.
- #retry?(current_try, max_retries, retryable_exit_codes, exit_code) ⇒ Boolean
-
#upload(locals, remote) ⇒ Object
Uploads local files or directories to remote host.
-
#wait_until_ready ⇒ Object
Block and return only when the remote host is prepared and ready to execute command and upload files.
Methods included from Logging
#banner, #debug, #error, #fatal, #info, #warn
Constructor Details
#initialize(options = {}) {|self| ... } ⇒ Connection
Create a new Connection instance.
90 91 92 93 94 95 96 |
# File 'lib/kitchen/transport/base.rb', line 90 def initialize( = {}) () if block_given? yield self end end |
Instance Method Details
#close ⇒ Object
Closes the session connection, if it is still active.
99 100 101 |
# File 'lib/kitchen/transport/base.rb', line 99 def close # this method may be left unimplemented if that is applicable end |
#execute(command) ⇒ Object
Execute a command on the remote host.
108 109 110 |
# File 'lib/kitchen/transport/base.rb', line 108 def execute(command) raise ClientError, "#{self.class}#execute must be implemented" end |
#execute_with_retry(command, retryable_exit_codes = [], max_retries = 1, wait_time = 30) ⇒ Object
Execute a command on the remote host and retry
120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 |
# File 'lib/kitchen/transport/base.rb', line 120 def execute_with_retry(command, retryable_exit_codes = [], max_retries = 1, wait_time = 30) tries = 0 begin tries += 1 debug("Attempting to execute command - try #{tries} of #{max_retries}.") execute(command) rescue Kitchen::Transport::TransportFailed => e if retry?(tries, max_retries, retryable_exit_codes, e.exit_code) close sleep wait_time retry else raise e end end end |
#login_command ⇒ LoginCommand
Builds a LoginCommand which can be used to open an interactive session on the remote host.
149 150 151 |
# File 'lib/kitchen/transport/base.rb', line 149 def login_command raise ActionFailed, "Remote login not supported in #{self.class}." end |
#retry?(current_try, max_retries, retryable_exit_codes, exit_code) ⇒ Boolean
137 138 139 140 141 |
# File 'lib/kitchen/transport/base.rb', line 137 def retry?(current_try, max_retries, retryable_exit_codes, exit_code) current_try <= max_retries && !retryable_exit_codes.nil? && retryable_exit_codes.include?(exit_code) end |
#upload(locals, remote) ⇒ Object
Uploads local files or directories to remote host.
159 160 161 |
# File 'lib/kitchen/transport/base.rb', line 159 def upload(locals, remote) # rubocop:disable Lint/UnusedMethodArgument raise ClientError, "#{self.class}#upload must be implemented" end |
#wait_until_ready ⇒ Object
Block and return only when the remote host is prepared and ready to execute command and upload files. The semantics and details will vary by implementation, but a round trip through the hosted service is preferred to simply waiting on a socket to become available.
168 169 170 |
# File 'lib/kitchen/transport/base.rb', line 168 def wait_until_ready # this method may be left unimplemented if that is applicable end |