v0.4.0

Beginning with v0.4.1, direct access to Lattice cells will be restricted to private addresses within the cluster.

Introducing TCP Router

TCP Router is a collection of components that balances traffic across one or more instances of an application. Unlike gorouter, tcp-router balances traffic other than HTTP, such as mysql, redis, or mongodb. Using ltc, a user defines a route from an external port on the Lattice brain to an exposed port on the application container. Under the hood, tcp-emitter regularly updates HAProxy with the TCP routes defined on the Lattice cluster.

• #172 #182 #191: Merge TCP Router functionality [#101089176] [#101699282] [#102296358]
  • 👍 Big thanks to the Routing team for their contributions! @shalako @fordaz @atulkc
• --routes no longer works on ltc create and ltc launch-droplet.
• Use the --http-routes flag to define HTTP routes for an app. [#100758692] [#100436212]
  • --http-routes takes a comma-delimited set of ROUTE:CONTAINER_PORT
  • This is reversed from --routes (breaking change)
• New --tcp-routes flag takes comma-delimited set of EXTERNAL_PORT:CONTAINER_PORT
• Multiple TCP routes can route to same container port. [#101697408]
• ltc update changes HTTP and/or TCP routes for a running application. [#98240702]
  • Replaces ltc update-routes (will be removed in a future release).
• ltc status and ltc list show TCP routes [#100258924] [#100258722]

New Distribution Bundles

With the recent conversion to Concourse as our CI platform, we took the opportunity to change the way we distribute Lattice -- no more git checkout; vagrant up. Starting with v0.4.0, we distribute a bundle (links below) that contains ltc along with the vagrant/terraform files needed to launch Lattice.

• Distribute Lattice via bundles [#101458202] [#101314108] [#101314112]

New Features

• ltc target --s3 uses an S3 bucket as the droplet store [#100236758] [#100237448]
  • Allows multiple developers to share droplets
  • Persists droplets across subsequent Lattice deployments
• ltc create --monitor-command uses a custom healthcheck command [#91461922]

Usability Fixes

• ltc target times out when a connection to the blob store hangs [#101164182]
• No longer downloads RootFS at provision-time on Vagrant and AWS [#101844068] [#101844098]
• Upgraded base Ubuntu image to 14.04.3 [#102162900]
• Document how to diagnose and resolve multiple vagrant instances running [#101992188]

For Developers

• ci.lattice.cf shows the current build status [#101284204]
• As part of our migration to Concourse, we now track master. Moving forward, please submit any PRs against the master branch. [#101834808]