add in this line to update sources

[gmeluski]

I was getting an error when running docker-compose build:

W: Failed to fetch http://deb.debian.org/debian/dists/jessie-updates/InRelease  Unable to find expected entry 'main/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file)

Submitting a change to the Dockerfile based upon this info: https://superuser.com/a/1423685

[BretFisher]

Thanks @gmeluski but the core issue here is the base ruby image is outdated, thus the package installs fail. I'm trying to test with the latest ruby release to see if we can just update the base instead.

[BretFisher]

Hey @gmeluski can you try updating to ruby 2.3.8 rather than your current solution and see if it builds?

You'll need to update the version line in Dockerfile and Gemfile

diff --git a/Dockerfile b/Dockerfile
index 10ca5ec..69dbc6d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.3.5
+FROM ruby:2.3.8

 RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs

diff --git a/Gemfile b/Gemfile
index 925e56f..487d853 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
-ruby '2.3.5'
+ruby '2.3.8'

 gem 'devise', '~> 3.0'
 gem 'geokit', '~> 1.0'```

[kmcurry]

@BretFisher @gmeluski should this PR be submitted to develop and promoted to master?

[BretFisher]

Yes. @gmeluski we have a develop (staging) environment and branch to test changes. Can you close this PR, open a new one to develop, and test my suggested ruby version changes rather then apt change? Thanks for the help!