Target Ruby 2.7.7

Author: myabc

.ruby-version

@@ -1 +1 @@
-2.4.4
+2.7.7

.travis.yml

@@ -4,7 +4,7 @@ sudo: false
 language: ruby
 
 rvm:
-  - 2.4.4
+  - 2.7.7
 
 addons:
   postgresql: "9.6"

Dockerfile

@@ -1,8 +1,8 @@
-FROM ruby:2.4.4
+FROM ruby:2.7.7
 RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs
 RUN mkdir /activities-app
 WORKDIR /activities-app
 COPY Gemfile /activities-app/Gemfile
 COPY Gemfile.lock /activities-app/Gemfile.lock
 RUN bundle install
-COPY . /activities-app
+COPY . /activities-app