Go to file
joeduffy 3d74eac67d Make major commands more pleasant
This change eliminates the need to constantly type in the environment
name when performing major commands like configuration, planning, and
deployment.  It's probably due to my age, however, I keep fat-fingering
simple commands in front of investors and I am embarrassed!

In the new model, there is a notion of a "current environment", and
I have modeled it kinda sorta just like Git's notion of "current branch."

By default, the current environment is set when you `init` something.
Otherwise, there is the `coco env select <env>` command to change it.
(Running this command w/out a new <env> will show you the current one.)

The major commands `config`, `plan`, `deploy`, and `destroy` will prefer
to use the current environment, unless it is overridden by using the
--env flag.  All of the `coco env <cmd> <env>` commands still require the
explicit passing of an environment which seems reasonable since they are,
after all, about manipulating environments.

As part of this, I've overhauled the aging workspace settings cruft,
which had fallen into disrepair since the initial prototype.
2017-03-21 19:23:32 -07:00
cmd Make major commands more pleasant 2017-03-21 19:23:32 -07:00
docs Fix a bunch of typos 2017-03-13 10:51:21 -07:00
examples Tidy up the webserver example to match slides 2017-03-21 11:02:20 -07:00
lib Add the instance maps to the AWS library 2017-03-15 19:54:29 -07:00
pkg Make major commands more pleasant 2017-03-21 19:23:32 -07:00
sdk Update copyright notices from 2016 to 2017 2017-03-14 19:26:14 -07:00
tools/cocojs Update copyright notices from 2016 to 2017 2017-03-14 19:26:14 -07:00
.gitignore Check in a missing test file 2017-02-01 19:41:13 -08:00
.gitmodules Fix an errant Git module 2017-02-25 10:35:51 -08:00
glide.lock Generate Golang Protobuf/gRPC code 2017-02-10 09:08:06 -08:00
glide.yaml Coconut! 2017-02-25 07:25:33 -08:00
main.go Update copyright notices from 2016 to 2017 2017-03-14 19:26:14 -07:00
Makefile Coconut! 2017-02-25 07:25:33 -08:00
README.md Fix a bunch of typos 2017-03-13 10:51:21 -07:00

Coconut

Coconut is a framework and toolset for creating reusable cloud services.

If you are learning about Coconut for the first time, please see the overview document.

Installing

To install Coconut from source, simply run:

$ go get -u github.com/pulumi/coconut

A GOPATH must be set. A good default value is ~/go. In fact, this is the default in Go 1.8.

It is common to alias the shorter command coco to the full binary coconut:

alias coco=coconut

At this moment, libraries must be manually installed. See below. Eventually we will have an installer.

Compilers

The Coconut compilers are independent from the core Coconut tools.

Please see the respective pages for details on how to install, build, and test each compiler:

Development

This section is for Coconut developers.

Prerequisites

Coconut is written in Go and uses Glide for dependency management. They must be installed:

If you wish to use the optional lint make target, you'll also need to install Golint:

$ go get -u github.com/golang/lint/golint

Building and Testing

To build Coconut, ensure $GOPATH is set, and clone into a standard Go workspace:

$ git clone git@github.com:pulumi/coconut $GOPATH/src/github.com/pulumi/coconut

At this point you should be able to build and run tests from the root directory:

$ cd $GOPATH/src/github.com/pulumi/coconut
$ glide update
$ make

This installs the coconut binary into $GOPATH/bin, which may now be run provided make exited successfully.

Installing the Runtime Libraries

By default, Coconut looks for its runtime libraries underneath /usr/local/coconut. $COCOPATH overrides this. Please refer to the libraries README for details on additional installation requirements.

Debugging

The Coconut tools have extensive logging built in. In fact, we encourage liberal logging in new code, and adding new logging when debugging problems. This helps to ensure future debugging endeavors benefit from your sleuthing.

All logging is done using Google's Glog library. It is relatively bare-bones, and adds basic leveled logging, stack dumping, and other capabilities beyond what Go's built-in logging routines offer.

The Coconut command line has two flags that control this logging and that can come in handy when debugging problems. The --logtostderr flag spews directly to stderr, rather than the default of logging to files in your temp directory. And the --verbose=n flag (-v=n for short) sets the logging level to n. Anything greater than 3 is reserved for debug-level logging, greater than 5 is going to be quite verbose, and anything beyond 7 is extremely noisy.

For example, the command

$ coco eval --logtostderr -v=5

is a pretty standard starting point during debugging that will show a fairly comprehensive trace log of a compilation.