Similarly to 210787a3, and as discussed in #88 and #130, nginx
will buffer chunked transfer-encoding unless proxy_buffering
is turned off or the X-Accel-Buffering header is set to no.
resolves#130
some jobs may spawn child processes which change their process group
or session id, making the existing abort behavior of HUP-then-KILL to
the process group ineffective. Instead, if HUP to the process group
fails, recursively walk /proc and KILL anything with a ppid corresponding
to the leader process. This should keep working because the leader
process is a subreaper.
resolves#129
only add the private ANSI sequence to the output of laminarc
start/run commands used for adding a hyperlink to the frontend if
we are within a job execution (tested with __LAMINAR_SETENV_PIPE).
this makes parsing the output easier, which is likely to be more
common when laminarc is invoked externally
add -h|--help usage messages to laminarc and laminard
add a mechanism to compile in a version number, and display the
version in the help messages and in the frontend.
resolves#119
WebUI rewritten in a more modern style, bootstrap is dropped in favour of
plain css/grid. Hand-crafted svgs replace utf-8 glyphs for a more uniform
look and smoother animation. webmanifest added for better mobile behaviour.
No doubt minor tweaks will follow...
resolves#57
CMAKE_INSTALL_PREFIX is supposed to be used to set an install prefix
of e.g. /usr or /usr/local. Because we need to install files to /etc,
we had been requiring CMAKE_INSTALL_PREFIX=/ and installing using
relative paths.
The best practice method is to install to /etc using absolute paths,
and then allow CMAKE_INSTALL_PREFIX to set where the final binaries
actually go. Now that it actually has some meaning, the systemd
service is generated to incorporate that path.
Those wishing to use "make install" to install laminar to a subdir
should use "make DESTDIR=path/to/subdir install" and NOT modify
CMAKE_INSTALL_PREFIX.
Documentation and packaging scripts updated accordingly.
navigating to a non-existent job in the frontend caused a
mutating change to the buildNums map, and returing the latestNum
field caused the frontend to repeatedly try to fetch the latest
run, which could overload the backend
C++17 has some nice new features, but Debian Stretch doesn't
support a compiler which can use it. Stretch is oldstable for a
while now anyway, so just deprecate support.
Chrome auto-reconnects when an EventSource connection is interrupted
but Firefox doesn't. Enforce consistent behaviour by implementing
reconnect logic.
laminard is a daemon process and does not read from stdin. Usually
we can rely on the process mananger to do this for us, but if not
(e.g. laminard is run interactively), we need this so that child
processes (job runs) will not be able to block on stdin.
resolves#125
the one-liner used to iterate on the results of the RPC
calls for show-jobs, show-queued and show-running meant
that the result collection was destroyed before we
finished with it. Hoist it out of the loop.
resolves#127
User may provide a custom index.html template file to be used instead
of the built-in version. Changes to this file are watched by laminard
using inotify in order to load and compress the custom file for gzip
delivery, reusing the existing method for serving static assets.
This feature obviates the custom css feature, so remove references from
the manual and add a deprecation warning if it is used.
Add a section to the UserManual describing how to use this feature and
including a link to an example using Semantic UI.
Implement a separate process, the "leader", which runs all the
scripts for a job run, instead of directly from the main laminard
process. This makes for a cleaner process tree view, where the
owning job for a given script is clear; also the leader process
acts as a subreaper to clean up any wayward descendent processes.
Resolves#78.
The nodes/tags system has not been particularly successful, it's not as
intuitive as it could be, and in an attempt to be a single feature to address
many use cases, ends up addressing none of them particularly well.
This commit replaces nodes and tags with contexts.
Each job may define which context(s) the job may be associated with.
Laminar will only pop the job off the waiting queue when it can be assigned
to a context. A context defines an integer number of executors, which
represents how many runs can be simultaneously assigned to it. A context
may provide extra environment variables.
Essentially, a context replaces a node, and tags are gone. You just assign
jobs to contexts directly, and you can use a glob expression. This should be
more intuitive.
For grouping jobs in the WebUI, a separate mechanism called "groups" is provided.
This triggers apt's configuration file management system, allowing
the user to choose their locally modified version, the new upstream
version, inspect differences etc; instead of blindly overwriting it.
Resolves#92.
This helps avoid confusion with the 'docker' directory. Also restore
the debian9 scripts which may be useful for a while longer, update
the names of the scripts and update the README accordingly.
Large refactor that more closely aligns the codebase to the kj async
style, more clearly exposes an interface for functional testing and
removes cruft. There is a slight increase in coupling between the
Laminar and Http/Rpc classes, but this was always an issue, just until
now more obscured by the arbitrary pure virtual LaminarInterface class
(which has been removed in this change) and the previous lumping
together of all the async stuff in the Server class (which is now
more spread around the code according to function).
This change replaces the use of Websockets with Server Side Events
(SSE). They are simpler and more suitable for the publish-style messages
used by Laminar, and typically require less configuration of the
reverse proxy HTTP server.
Use of gmock is also removed, which eases testing in certain envs.
Resolves#90.
Create example Dockerfile and document its use in the User Manual.
This provides a minimal Alpine Linux based starting point for users who want to build a custom Laminar Docker container.
The inner version should be the same as the one in the filename; the
filename pattern is "${name}_${version}_${arch}.deb".
Set the version suffix to avoid conflicts with a future Debian package
and include the Debian version this package was built against.
On systems such as Alpine Linux (with busybox) and Adelie Linux (with
coreutils), the shell core utilities such as pwd, true, false, env, and
yes are all symlinks to a single binary. This single binary relies on
the name of the symlink to determine which command ("applet" in busybox
parlance) to execute. Therefore creating symlinks to these symlinks will
not work since the single binary will only see the top-level symlink and
thus think it is an invalid command.
Instead, generate executable shell scripts that exec into the desired
command. This also allows $PATH based resolution to occur instead of
hard-coding the command paths.
See also issue #94.
