Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Migrate environment spec.json to the app.yaml model

Currently spec.json contains detail about an environment's namespace and
server. Following the proposal at
design/proposals/modular-components.md, this change will consolidate
environment specifications in the common ksonnet app.yaml file.

An environment specification for the environment "dev", may look as
follows:

environments:
  dev:
    destinations:
    - namespace: foo
      server: example.com
    k8sVersion: "1.8.1"
    path: dev
    targets:
    - db

Note: This change currently doesn't support

(1) population of the k8sVersion field. This will occur as we migrate
the environment .metadata folder.
(2) deployment to more than one destination. This will occur once ks
supports multi-cluster deployment.
(3) setting of details other than the env name in `ks env set`. Prior
to this change, users are able to namespace and server URI, however it
becomes ambiguous which namespace is being set for an environment where
there can be multiple destinations. We will encourage configuration in
app.yaml itself.
(4) targets. This will come in a later change.

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Add interface for Environment Spec

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Extract ksonnet generator

extracts ksonnet generator to a new package to make it easier to incorporate in new code

Signed-off-by: bryanl <bryanliles@gmail.com>

[docs] Clarify prototypes + add troubleshooting issue

Signed-off-by: Jessica Yao <jessica@heptio.com>

Signed-off-by: Jessica Yao <jessica@heptio.com>

updating 1.0 roadmap

Signed-off-by: bryanl <bryanliles@gmail.com>

use afero when possible

Use afero when possible to allow for fs flexibitily (in tests or other instances).

fixes #39

Signed-off-by: bryanl <bryanliles@gmail.com>

Proposal: Modular components and cleaner environments

In summary:
* Introduce the concept of _targets_, easily allowing an environment to
  target specific components.
* Add optional hierarchy structure to components, for grouping and
  reusability.
* Allow environments to operate on multiple _destinations_.
* Consolidate shared environment metadata and configuration files.

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Upgrade to client-go version 5

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

design proposal: ksonnet lib simple constructors

Add remove component functionality

Introduce `ks component rm <component>`. This functionality will:

1. Delete the component file from components/. This is determined by the
component file name. If there exists two files with the same name but
different file  extensions, we will error out.

2. Remove component references. This currently implies removing all
component referenes in the component/params.libsonnet file and the
environment-specific params.libsonnet files.

Signed-off-by: Jessica Yuen <im.jessicayuen@gmail.com>

pruning vendor from dep conversion

Signed-off-by: bryanl <bryanliles@gmail.com>

Signed-off-by: bryanl <bryanliles@gmail.com>

Versions retrospective and fixes

The versioning retrospectiv chronicles our failure to correctly
implement versioning semantics for many parts of the ksonnet experience.

Signed-off-by: Alex Clemmer <clemmer.alexander@gmail.com>

Dependencies in a ksonnet application are installed from collections of
packages called registries. In order to be precise about which packages
an app depends on, and where they are from, we have an API that
specifies each of these nouns.

Unfortunately, we never hooked up code to verify the versions of these
specifications as we deserialize them.

This commit will correct that.

Signed-off-by: Alex Clemmer <clemmer.alexander@gmail.com>

ksonnet makes extensive use of semantic versioning for many things,
including API schemas. To aid this, we introduce a dependency on
`blang/semver` v3.5.1, and `pkg/errors` as a helper.

Signed-off-by: Alex Clemmer <clemmer.alexander@gmail.com>

Construct apimachinery version

Using `Version()` as a string leaves a preprocessed version tag in the
ksonnet version. Construct a new version using the `Major` and `Minor`
fields. Adds short SHA1 from k8s.io/apimachinery as well. SHA1 is pulled
from `dep status`.

Re: #250

Signed-off-by: bryanl <bryanliles@gmail.com>

Signed-off-by: bryanl <bryanliles@gmail.com>

Implement explicit env metadata

Removing realpath

Darwin operating systems does not ship with `realpath` so using another working variation

Signed-off-by: Kris Nova <knova@heptio.com>

convert from govendor to dep