EDIT: Solved. I found this: LSP: Allow configuration to control processId · Issue #14504 · neovim/neovim · GitHub Used --pid=host as part of the cmd and the server runs. 
I have been trying to use GitHub - rcjsuen/dockerfile-language-server-nodejs: A language server for Dockerfiles powered by Node.js, TypeScript, and VSCode technologies. as a podman container, but without success. I HAVE been able to get the sumneko_lua lanugage server working in podman. I have attempted these both on Manjaro & Ubuntu 20.04 WSL2
These are the images I have attempted to use:
rcjsuen/docker-langserver on Docker Hub (0.4.1)
The Dockerfile rcjsuen used for the 0.4.1 image:
FROM node:alpine
COPY lib /docker-langserver/lib
COPY bin /docker-langserver/bin
COPY package.json /docker-langserver/package.json
WORKDIR /docker-langserver/
RUN npm install --production && \
chmod +x /docker-langserver/bin/docker-langserver
ENTRYPOINT [ "/docker-langserver/bin/docker-langserver" ]
My lua config in vimrc:
" {{{ docker language-server
lua << EOF
require'lspconfig'.dockerls.setup{
cmd = {
"podman",
"run",
"--interactive",
"--rm",
"--volume",
vim.loop.cwd() .. ':/usr/src',
"rcjsuen/docker-langserver",
"--stdio",
}
}
EOF
" }}}
Opening a Dockerfile results in Client 1 quit with exit code 1 and signal 0 and also a warning in ~/.cache/nvim/lsp.log:
[WARN][2021-10-22 13:40:56] ...lsp/handlers.lua:108 "The language server dockerls triggers a registerCapability handler despite dynamicRegistration set to false. Report upstream, this warning is harmless"
lspcontainers/docker-language-server on Docker Hub (0.4.1)
The Dockerfile used in the lspcontainers image:
FROM alpine:3.13.5
RUN apk add --no-cache \
nodejs \
npm
ARG VERSION
RUN npm install -g \
dockerfile-language-server-nodejs@${VERSION}
CMD [ "/usr/bin/docker-langserver", "--stdio" ]
My lua config in vimrc:
" {{{ docker language-server
lua << EOF
require'lspconfig'.dockerls.setup{
cmd = {
"podman",
"run",
"--interactive",
"--rm",
"--volume",
vim.loop.cwd() .. ':/usr/src',
"lspcontainers/docker-language-server",
}
}
EOF
" }}}
Opening a Dockerfile results in Client 1 quit with exit code 1 and signal 0 and also a warning in ~/.cache/nvim/lsp.log:
[WARN][2021-10-22 14:00:26] ...lsp/handlers.lua:108 "The language server dockerls triggers a registerCapability handler despite dynamicRegistration set to false. Report upstream, this warning is harmless"
Dockerfile I built locally:
FROM alpine:3.13.5
RUN apk add --no-cache \
nodejs \
npm
RUN npm install -g \
dockerfile-language-server-nodejs@0.7.2
CMD [ "/usr/bin/docker-langserver", "--stdio" ]
My lua config in vimrc:
" {{{ docker language-server
lua << EOF
require'lspconfig'.dockerls.setup{
cmd = {
"podman",
"run",
"--interactive",
"--rm",
"--volume",
vim.loop.cwd() .. ':/usr/src',
"localhost/dockerls",
}
}
EOF
" }}}
Opening a Dockerfile results in Client 1 quit with exit code 1 and signal 0 and also a warning in ~/.cache/nvim/lsp.log:
[WARN][2021-10-22 14:04:19] ...lsp/handlers.lua:108 "The language server dockerls triggers a registerCapability handler despite dynamicRegistration set to false. Report upstream, this warning is harmless"
If I try any using --tty option I see an error in ~/.cache/nvim/lsp.log:
[ERROR][2021-10-22 14:07:39] .../vim/lsp/rpc.lua:462 "rpc" "podman" "stderr" 'time="2021-10-22T14:07:39-04:00" level=warning msg="The input device is not a TTY. The --tty and --interactive flags might not work properly"\n'
I have also tried using --attach stdin --attach stdout w/o success.
Neovim :version
:version
NVIM v0.5.1
Build type: RelWithDebInfo
LuaJIT 2.1.0-beta3
Compilation: /usr/bin/gcc-11 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 -DNVIM_TS_HAS_SET_MATCH_LIMIT -O2 -g -Og -g -Wall -Wextra -pedantic -Wno-unused-parameter -Wstrict-prototypes -std=gnu99 -Wshadow -Wconversion
-Wmissing-prototypes -Wimplicit-fallthrough -Wvla -fstack-protector-strong -fno-common -fdiagnostics-color=always -DINCLUDE_GENERATED_DECLARATIONS -D_GNU_SOURCE -DNVIM_MSGPACK_HAS_FLOAT32 -DNVIM_UNIBI_HAS_VAR
_FROM -DMIN_LOG_LEVEL=3 -I/home/runner/work/neovim/neovim/build/config -I/home/runner/work/neovim/neovim/src -I/home/runner/work/neovim/neovim/.deps/usr/include -I/usr/include -I/home/runner/work/neovim/neovim
/build/src/nvim/auto -I/home/runner/work/neovim/neovim/build/include
Compiled by runner@fv-az87-829
Features: +acl +iconv +tui
See ":help feature-compile"
system vimrc file: "$VIM/sysinit.vim"
fall-back for $VIM: "/home/runner/work/neovim/neovim/build/nvim.AppDir/usr/share/nvim"
Run :checkhealth for more info
Neovim :checkhealth
health#lspconfig#check¬
========================================================================¬
## Checking language server protocol configuration¬
- INFO: dockerls: configuration checked.¬
¬
health#nvim#check¬
========================================================================¬
## Configuration¬
- OK: no issues found¬
¬
## Performance¬
- OK: Build type: RelWithDebInfo¬
¬
## Remote Plugins¬
- OK: Up to date¬
¬
## terminal¬
- INFO: key_backspace (kbs) terminfo entry: key_backspace=\177¬
- INFO: key_dc (kdch1) terminfo entry: key_dc=\E[3~¬
¬
health#provider#check¬
========================================================================¬
## Clipboard (optional)¬
- WARNING: No clipboard tool found. Clipboard registers (`"+` and `"*`) will not work.¬
- ADVICE:¬
- :help clipboard¬
¬
## Python 2 provider (optional)¬
- WARNING: No Python executable found that can `import neovim`. Using the first available executable for diagnostics.
- ERROR: Python provider error:¬
- ADVICE:¬
- provider/pythonx: Could not load Python 2:¬
python2 not found in search path or not executable.¬
python2.7 not found in search path or not executable.¬
python2.6 not found in search path or not executable.¬
python not found in search path or not executable.¬
- INFO: Executable: Not found¬
¬
## Python 3 provider (optional)¬
- INFO: `g:python3_host_prog` is not set. Searching for python3 in the environment.¬
- INFO: Multiple python3 executables found. Set `g:python3_host_prog` to avoid surprises.¬
- INFO: Executable: /usr/bin/python3¬
- INFO: Other python executable: /bin/python3¬
- INFO: Python version: 3.8.10¬
- INFO: pynvim version: 0.4.1 (outdated; from /usr/lib/python3/dist-packages/neovim)¬
- WARNING: Latest pynvim is NOT installed: 0.4.3¬
¬
## Python virtualenv¬
- OK: no $VIRTUAL_ENV¬
¬
## Ruby provider (optional)¬
- INFO: Ruby: ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux-gnu]¬
- WARNING: `neovim-ruby-host` not found.¬
- ADVICE:¬
- Run `gem install neovim` to ensure the neovim RubyGem is installed.¬
- Run `gem environment` to ensure the gem bin directory is in $PATH.¬
- If you are using rvm/rbenv/chruby, try "rehashing".¬
- See :help g:ruby_host_prog for non-standard gem installations.¬
¬
## Node.js provider (optional)¬
- WARNING: `node` and `npm` (or `yarn`) must be in $PATH.¬
- ADVICE:¬
- Install Node.js and verify that `node` and `npm` (or `yarn`) commands work.
¬
## Perl provider (optional)¬
- ERROR: perl provider error:¬
- ADVICE:¬
- "Neovim::Ext" cpan module is not installed¬
¬
health#treesitter#check¬
========================================================================¬
## Checking treesitter configuration¬
- INFO: Runtime ABI version : 13¬
- OK: Loaded parser for c: ABI version 13¬