Commit Graph

7832 Commits

Author SHA1 Message Date
Solomon Hykes e512fef425 beam/examples/beamsh: don't print discarded messages in Devnull
This avoids false alarms when process exits without printing. Devnull
doesn't require synchronization.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:19 -07:00
Solomon Hykes 34c5724b89 beam/examples/beamsh: more useful debugging
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:19 -07:00
Solomon Hykes a5bc75d406 beam/data: expose EncodeString for convenience access to the underlying netstring primitive
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:19 -07:00
Solomon Hykes fb1af1f0bc beam/examples/beamsh: utility function 'fileToConn'
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:19 -07:00
Solomon Hykes 74b90c25d9 beam/examples/beamsh: 'connect' command
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:19 -07:00
Solomon Hykes dff9854305 beam/examples/beamsh: 'exec' and 'listen' commands
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:19 -07:00
Solomon Hykes 3686d50429 beam/examples/beamsh: prettier devnull
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes c9b8e0fcac beam/data: prettier Message.Pretty()
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes d7a2ae8e13 beam/examples/beamsh: prettier 'trace' command
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes eca6fecb59 beam/data: convenience Message.Pretty() function
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes d4920b3fff beam/examples/beamsh: basic implementation of the pipeline design, with static handlers for now.
In the pipeline design, several beam commands can be run concurrently,
with their respective inputs and outputs connected in such a way that
beam messages flow from the first to last. This is similar to the way
a unix shell executes commands in a pipeline: instead of STDIN and
STDOUT, each beam command has a "BEAMIN" and "BEAMOUT".

Since beam allows for richer communication than plain byte streams, beam
pipelines can express more powerful computation, while retaining the
fundamental elegance and ease of use of unix-style composition.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes ec288895e5 beam/examples/beamsh: better debugging messages
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes ab2010cfd3 beam/examples/beamsh: simple 'exec' command
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes 5689792171 beam/examples/beamsh: catch introspection calls from jobs for proper nesting
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes bcd31405cf beam: fix FD leaks in SendPipe
This fixes file descriptor leaks in the SendPipe function.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:18 -07:00
Solomon Hykes 1737063904 beam: more hooks for interactive debugging
This inserts low-level hooks for interactive step-by-step debugging.
Hooks are triggered by setting the *TEST* environment variable.

This is particularly useful for tracking down file descriptor leaks,
double-closing, or other issues which are difficult to debug with
the usual toolbox.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 6072dec9e7 beam/examples/beamsh: first try at nested execution
The "wiring" is broken because engine does not keep a reference for handling introspection calls.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 8697490740 beam/examples/beamsh: fix a bug in the log command
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 488fe61354 beam/data: convenience Message.Get
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 460c98d92d beam/examples/beamsh: use beam/data
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 5bcf2a736c beam/data: Message.Bytes() convenience method
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 99dda11d45 beam/data: fix a bug in encoding of multi-value maps
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 276fb1918d beam/data: convenience Message type for chained manipulation
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 916372c76f Beam: remove leftover debugging messages
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes cb66e8c136 beam/examples/beamsh: hide debug messages in examples/beamsh by default
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:17 -07:00
Solomon Hykes 97a2c0ebe6 beam/data: a simple format for sending structured data over beam
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes 771e493457 beam/examples/beamsh: more bells and whistles for demos
* Automatically switch to interactive mode when stdin is a terminal

* Basic implementation of "responses"

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes 851c1b05d0 Beam: fix bug in beamsh which 'swapped' FDs because of underlying implementation of net.FileConn
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes 4481e80636 pkg/dockerscript: <!> is not a special character
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes 07c03944ff Beam: don't close the attachment FD when closing superfluous FDs
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes 8875cdf561 Beam: debugging hooks for easy step-by-step inspection of the FD table
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes f586dcf307 beam/examples/beamsh: use 'log' command to pass stdout
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes d00a6b7648 beam/examples/beamsh: basic execution of commands, with in-process beam and dummy handlers
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes f0933a91b0 pkg/dockerscript: remove debug messages
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:16 -07:00
Solomon Hykes 5c14c3ada5 pkg/dockerscript: '.' is not a special character
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes f94a18677a Beam: Send: pass the underlying error unchanged to allow io.EOF detection
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes 11f2531da6 pkg/dockerscript: expose a simple, clean API with a single Parse method
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes 7f00a3b665 beam/examples/beamsh: correctly parse nested commands
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes fd890136a9 dockerscript: patch text/scanner to use a shell-like syntax instead of the default go-like syntax
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes cd8ddacdc7 pkg/dockerscript: a simple shell-like syntax to express docker operations
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes be470f2497 Beam: beamsh is a mini-shell which runs processes and communicates with them over beam
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes 0e42c7d889 Beam: basic test harness for the unix socket implementation.
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes 59853c188d Beam: USocketPair returns a *net.UnixConn socket pair for convenience.
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes c401c43cae Beam: fix file descriptor leaks
* Close all file descriptors successfully sent as attachment
* Close duplicate file descriptors created by net.FileCon and net.UnixConn.File

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:15 -07:00
Solomon Hykes b637e5f04a Beam: change the prototype of SendPipe() to return a *net.UnixSocket
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:14 -07:00
Solomon Hykes 188c2ef806 Beam: allow sending messages without attachments.
Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:14 -07:00
Solomon Hykes 3960da04c8 Beam: convenience functions Listen and Connect
These convenience functions expose a familiar face to the unknown and bizarre world of beam networking.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:14 -07:00
Solomon Hykes 5957e6b385 Beam: a simple stream-oriented communication protocol for distributed systems.
This patch includes a stripped down implementation with a bare minimum
unix socket transport. It relies on fd passing for stream multiplexing.

The purpose of this first patch is to allow implementation of dynamic
linking, which will allow advanced service discovery.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
2014-04-22 15:50:14 -07:00
Tianon Gravi f763075c74 Update contributed man page file names and compilation script for the eventual possibility of non-man1 man pages (hopefully a Dockerfile.5.md, for example)
Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
2014-04-22 06:43:08 -06:00
Tianon Gravi 2c4cebe916 Move "possible config locations" list to the top of check-config.sh
Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
2014-04-22 06:26:44 -06:00