pouchdb-server wont run on docker using node:12-alpine

[jonathanmcchesney]

Current version of pouchdb-server throws a segmentation fault when running in docker using node:12-alpine, falling back to node:10-alpine still results in a seg fault for this release version. Previous release V4.1.0 seems to run fine on node:10-alpine, but not on later alpine versions.

Dockerfile:

FROM node:12.10.0-alpine

RUN apk --update add curl g++ make python valgrind && \
     npm install --global --unsafe-perm=true pouchdb-server && \
     rm -rf /root/.[^.]* && \
     apk del g++ make python

RUN npm install pouchdb-adapter-leveldb

WORKDIR /pouchdb

Run: docker run -p 5984:5984 --hostname=pouchdb-server --name=pouchdb-server imageName

Running valgrind on pouchdb-server -p 5984

--25-- Reading syms from /usr/lib/valgrind/vgpreload_core-amd64-linux.so
--25-- Reading syms from /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so
--25-- REDIR: 0x4024dfb (libc.musl-x86_64.so.1:free) redirected to 0x489d6cc (free)
--25-- REDIR: 0x404fe59 (libc.musl-x86_64.so.1:strlen) redirected to 0x489f38d (strlen)
--25-- REDIR: 0x4024d4e (libc.musl-x86_64.so.1:calloc) redirected to 0x489e65e (calloc)
--25-- REDIR: 0x404fc1d (libc.musl-x86_64.so.1:strcpy) redirected to 0x489f3ef (strcpy)
--25-- REDIR: 0x404fb69 (libc.musl-x86_64.so.1:strchr) redirected to 0x489f0ea (strchr)
--25-- REDIR: 0x404ff5f (libc.musl-x86_64.so.1:strncmp) redirected to 0x489f7f3 (strncmp)
--25-- REDIR: 0x404fb79 (libc.musl-x86_64.so.1:strchrnul) redirected to 0x48a24e0 (strchrnul)
--25-- REDIR: 0x404fc05 (libc.musl-x86_64.so.1:strcmp) redirected to 0x489fd3a (strcmp)
--25-- REDIR: 0x405001d (libc.musl-x86_64.so.1:strrchr) redirected to 0x489f057 (strrchr)
--25-- REDIR: 0x404ffe3 (libc.musl-x86_64.so.1:strnlen) redirected to 0x489f367 (strnlen)
Segmentation fault (core dumped)```

[sstewart199]

Hi Jonathan,
Funny you mention this, I just put up a PR to update the readme explaining how to install on Alpine with node 12.

#424