I am trying to build a language server to be implemented as a sidecar for eclipse che. I built a fat jar from a xtext language server that I've created. Can I use this fat jar to implement my language server in a dockerfile in order to run my language server as a container?
I wrote a Dockerfile as below:
FROM barais/eclipse-xtend
ADD build/libs/dsl-language-server-ls.jar dsl-language-server-ls.jar
RUN sudo apt-get install socat
CMD socat TCP4-LISTEN:4417,reuseaddr,fork EXEC:"mydsl"
"dsl-language-server-ls.jar" is the jar file made by building my project (i.e, the LS). My question is, can I run my language server by including the .jar file as in the above dockerfile? It actually worked in eclipse che, but I still get a broken pipe error, and a timeout error which makes me doubt my approach.
Language Server Initialization Error
This is the error I'm getting.
this will only work if you package your docker image correctly
make sure you include java 8
make sure that your either include not only the jar but the startupscripts from the build directory too
or you simply call java -jar yourjar.jar instead of the mydsl startup script
Related
I would like to run VSCode on my host machine, but (using its features / extensions) fire up tools from within the dev-env living inside my Docker container.
I have set up a docker image as a development environment for C++. Let's call it dev-env.
It is linux-based and contains required libraries, crosscompilation toolchains and various tools we use for building and testing our software (cmake, ninja, cppcheck, clang-tidy etc.)
I have a GIT repository on a host machine, which I mount inside a docker.
So my usual workflow would be to run docker:
host$
host$ docker run -v path/to/my/codebase/on/host:path/inside/docker -h dev-env --rm -it image_name bash
docker#
docker# cd build; cmake ..
etc...
And as such, I can build, test and run my tools inside my unified development environment inside the docker.
Now, the goal is to take it out of the terminal to the world of IDE.
I happen to use VS Code.
On host machine, I open my codebase folder in VSCode. Since it's mapped inside the docker, any changes I make locally will be available inside dev-env as well.
But if I now run anything from VSCode (CMake configure, build, etc.) it will of course call the tools from within my host machine - which of course will not work, and is not what I want.
With tasks defined in tasks.json I could probably manage with having them run something like docker exec CONTAINER my_command
It gets more complicated with extensions:
What I would like is to have the e.g. VSCode CMake Tools extension configured in such a way, that when I run Cmake Configure (in a VSCode running on my host machine), it will actually run cmake commands from within Docker container, using cmake installed inside Docker, not from my host machine.
Temporary solution: Forwarding display through X / VNC
So Installing VSCode inside the Docker, running x/vnc server inside the Docker, exposing port and connecting to it from the host machine.
Yes, it is possible, I have it running here. But it has many limitations and problems, of which the most painful is the lag/delay.
This is bad solution in general, so I would strongly push for avoiding this.
Another solution that I can think about:
VSCode instance running as a server inside the docker.
VSCode instance on your host connecting to the server instance.
You do all the work inside your host VSCode, but anytime you run a command, it is executed by a server instance, which runs everything inside Docker.
I guess this would require support from VSCode (or maybe an extension).
VSCode Live Share extension is not made exactly for that, but it's functionalities might do the job. I have not tested it yet.
I'm having trouble installing and configuring Leiningen on a Windows 7 work computer. I'm assuming that my company's firewall prevents the GitHub security certificate from authenticating.
I've tried to use the standalone jar but had trouble using it will several development tools Id like to use to work on Clojure projects.
What is the best way to get Leiningen set up given these circumstances? Is there a way to install curl or wget on Windows and call them from the batch file?
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
The error Im getting is:
Downloading Leiningen now...
'powershell' is not recognized as an internal or external command,
operable program or batch file.
Failed to download https://github.com/technomancy/leiningen/releases/download/2.
7.1/leiningen-2.7.1-standalone.zip
It is possible that the download failed due to "powershell",
"curl" or "wget"'s inability to retrieve GitHub's security certificate.
The suggestions below do not check certificates, so use this only if
you understand the security implications of not doing so.
The PowerShell failed to download the latest Leiningen version.
Try to use "curl" or "wget" to download Leiningen by setting up
the HTTP_CLIENT environment variable with one of the following
values:
a) set HTTP_CLIENT=wget --no-check-certificate -O
b) set HTTP_CLIENT=curl -f -L -k -o
NOTE: Make sure to not add double quotes when setting the value
of HTTP_CLIENT
Thanks!
I would suggest downloading and installing Git Bash (aka "Git for Windows), which includes not only Git but a nice linux-like environment (a leaner version of Cygwin). At that point you will avoid any Powershell-related problems, which your error msg seems to imply.
https://git-scm.com/download/win
I'd like to get this running (https://github.com/maitria/avi), which recommends using
sudo lein install
But lein doesn't act like an ordinary command -- I get
sudo: lein: command not found.
There only seem to be three subcommands that run into permissions problems and I considered doing them manually, but they're fairly gnarly string-interpolated arguments to the C compiler and my chances of not making a mistake seem pretty small.
So leiningen is not your typical command. Its a tool built in Clojure and is used to manage clojure applications much like rake works for Ruby. These 3 steps should help you
Download the lien script from the leiningen home page and place it in a location that is part of your PATH.
2.Run lein in the command-line and it will install it dependencies, though you will need to make sure you preinstalled JDK
3.Run lein install in the location of your code
Is there a full download I can use which downloads leiningen and all related stuff in one go? I am not able to change the proxy settings on my local network, and this is the error I get:
"DownloadFile" with "2" argument(s): "The remote server returned an error: (407) Proxy Authentication Required."
Update
You need to download the Leiningen standalone jar and then point LEIN_JAR to it:
set LEIN_JAR=full path to leiningen standalone jar
For me - setting the proxies didn't work (and downloading the jar was unsatisfactory)
I got:
the wget binary, and
the wget dependencies
and put them on my PATH - ie h:\util contains:
wget.exe
libssl32.dll
libintl3.dll
libiconv2.dll
libeay32.dll
(where H:\util was already on my path. )
and then got a new terminal cmd.exe - and then lein self-install worked.
Assumptions:
Downloading the jar was unsatisfactory because the point of lein is to be a dependency manager (like maven). You need to keep downloading stuff. If you manually download the first jar - then when you add some more jar dependencies to your project you'll have to manually download those as well. Might as well chuck out lein and go back to doing things on the Java classpath.
In my view - in a windows environment proxy settings should be automatically detected. Lein can't do this (yet) - but the wget version I downloaded could. So you solve the problem of needing to explicitly specify the proxy. (In addition - manually setting the proxy just didn't work for me)
This should help:
https://github.com/technomancy/leiningen/wiki/HTTP-Proxies
You should work on your googling skills ;)
I want to post this as a comment to #hawkeye, but I dont have enough reputation. This work for me only when I set environment variable.
set HTTP_CLIENT=wget --no-check-certificate -O
I know it is possible to use CounterClockwise inside Eclipse, but I have been trying to get Leiningen to work so that I could use ClojureScript.
I downloaded leiningen using git clone. It then says run the script. I have tried lein self-install from inside PowerShell and inside the git bash environment.
In each I get an error about failing to download leiningen (which I thought I had with the git clone? hmm). It is interesting because one reads instructions that include things that don't make sense to Windows.
For example, inside Powershell, Windows doesn't understand export HTTP_CLIENT. It was only inside the git bash that I got a message that it is possible my HTTP client's certificate store does not have the correct certificate authority.
It then suggests this command, which runs ok, export HTTP_CLIENT="curl --insecure -f -L -o"
but it doesn't fix the problem.
The most recommended method AFAIK is to download the script lein.bat and putting it on the PATH environment variable. I've tested this method on several systems (XP, Windows 7). There is no need to build leiningen from a git checkout yourself. If you have a Windows with Powershell installed lein self-install should download the core .jar file inside a directory .lein in your user directory. Else, make sure you install either wget.exe or curl.exe and put it on the PATH.
There is an installer for Leiningen on Windows. You just need to install Java SE 7 JDK and Leiningen for Windows. This page has detailed instructions with screen shots: http://leiningen-win-installer.djpowell.net/
Leiningen for Windows creates a PATH variable and Clojure REPL shortcut among other things. From the REPL you can create, build, and automate your Clojure project.