publish gateway

Added

• entrypoint: support changing gateway address & port via environment variable IPFS_GATEWAY_ADDR
  (e.g. IPFS_GATEWAY_ADDR=/ip4/0.0.0.0/tcp/8080 to listen on all ipv4 interfaces, default: 127.0.0.1:8080)

Fixed

• docker-compose: remove unsuppported option volumes[].tmpfs.mode

image labels

Added

• image labels:
  • org.opencontainers.image.revision (git commit hash via build arg)
  • org.opencontainers.image.source (repo url)
  • org.opencontainers.image.title

Changed

• docker-compose: use custom container name "ipfs" instead of auto-generated "[PROJECT_NAME]_ipfs_1"
• docker-compose: read-only root filesystem
• docker-compose: drop capabilities

0.2.2

fixed

• restore support for empty $IPFS_SWARM_ADDRS

debian base image

fixed

• base image: switch from alpine to debian to support ipfs >= v0.6.0
  (libc incompatibility)

api address

new features:
* expose api port 5001
* configure api address via `$IPFS_API_ADDR`
* added `docker-compose.yml`