Improved some of warnings/messages shown to the user when using `fission spec` command. The `spec validate` command now shows appropriate warnings instead
This PR introduces extensibility to the Fission CLI. The principle behind the design of this extensibility is taken from the approach git uses: the main binary (fission) calls other binaries (fission-workflows) - which it discovers using simple prefix-rules - based on specific commands (fission workflow <command>).
* Fix CLI failed to set up port-forwarding when multiple controller pods exist in the same namespace
* Check pod healthy state before establishing the connection
This line warns the user that dependent environment doesn’t exist, and presents the command line
for creating an environment.
When the variable `envNamespace` is specified, the `envns` option should be available as well.
For certain environments, the archive should not be extracted and kept as it is (For ex. for Java the jar file should not be extracted). This change enables an environment level flag to control this behaviour.
For archives bigger than 256K, the Storage service was called from the client side, this needed few environment variables to be set. This change uses port forwarding to achieve the same and does not need environment variables to be set.
Ingress integration to allow the optional creation of ingress for a given route. The ingress controller needs to be set up by the user separately so that ingress path is accessible outside the cluster.
This feature allows creation of fission objects in different namespaces, in addition to retaining the existing behavior of creating fission objects in default namespace if user doesnt provide one.
It also removes cluster admin roles for fission-fetcher and fission-builder Service Accounts and grants them only those privileges that they need.
* Fixes the issue with fn test and adds relevant test cases, fixes#650
* Checking log size for invalid function
* Testing the invalid function logs a few time beforr quitting
* Disabling the test for now, linked to issue #653
Adds a validator, invoked through `fission spec validate` and before `fission spec apply`. The validator checks for duplicate names, dangling references, and unused resources.
Also attempts to fix a race between CLI and builder. Avoids replacing a package while it's building, instead waiting for the build status to change from pending before updating it.
The cli spec dir flag name should be `specdir`, not `specs`, that should match to:
```go
specDirFlag := cli.StringFlag{Name: "specdir", Usage: "Directory to store specs, defaults to ./specs"}
```
in fission/main.go
Currently it cause the specific specs dir not to work.
```
$ fission spec apply --specdir <my spec dir>
Everything up to date.
```
