Sample project showing the aws-sdk S3 error:
/usr/local/lib/ruby/2.2.0/net/http.rb:879:in `initialize': unable to connect to `mybucket.localstack`; SocketError: getaddrinfo: Name or service not known (Seahorse::Client::NetworkingError)` raised by Aws Seahorse.
localstack/localstack#472 (comment)
- Localstack: a simple localstack docker container, configured to handle S3 only
- Api: a simple ruby 2.2.5 with a script exposing the problem
I want to use aws-sdk with localstack for S3 usage, both in their container to ease maintenance.
We can see that api container can reach without a problem the localstack container via the configured link.
For unknown reason, the aws-sdk-s3 try to reach BUCKET.localstack and fail.
On the same container, awscli works perfectly:
root@35afc611394b:/app/user# aws configure
AWS Access Key ID [None]: sofake
AWS Secret Access Key [None]: solie
Default region name [None]: eu-west-1
Default output format [None]:
root@35afc611394b:/app/user# aws --endpoint-url=http://localstack:4572 s3 mb s3://test1
make_bucket: test1
root@35afc611394b:/app/user# aws --endpoint-url=http://localstack:4572 s3 ls
2006-02-03 16:45:09 test1
- localstack on the same container that the script: ❌ same results
- adding BUCKET.localstack in /etc/hosts: ❌ same results
- upgrade to ruby 2.4.2: ❌ same results
- downgrade to aws-sdk 2: ❌ same results