Merge branch 'CI/CD' into 'master'

.gitignore

.travis.yml

apollo-gateway/.env.example

apollo-gateway/Dockerfile

apollo-gateway/auth/auth.js

apollo-gateway/graphql/adapters/CommentsService.js

apollo-gateway/graphql/adapters/PostsService.js

apollo-gateway/graphql/adapters/UsersService.js

apollo-gateway/graphql/resolvers/comments.js

apollo-gateway/graphql/resolvers/index.js

apollo-gateway/graphql/resolvers/posts.js

apollo-gateway/graphql/resolvers/users.js

apollo-gateway/graphql/typeDefs.js

apollo-gateway/index.js

apollo-gateway/package-lock.json

apollo-gateway/package.json

comments-service/.env.example

comments-service/Dockerfile

comments-service/babel.config.cjs

comments-service/controllers/comments.js