Add sink resource

[nodece]

Fix #37

TODO

• Add description for sink resource
• Update README.md

[sijie]

@nlu90 @freeznet Can you review this PR?

[nlu90]

The code itself looks fine.

Is there any guidance on how to actually run it?

[nodece]

@nlu90 Currently, we only have README.md, you can check out the Installation and Example sections. When you clone this PR to local, you need to run make build-dev to install this plugin to Terraform.

[nlu90]

Seems my local env lacks of some dependency.

│ Error: open testdata/pulsar-io/pulsar-io-jdbc-postgres-2.8.1.nar: no such file or directory
│
│   with pulsar_sink.sink-1,
│   on main.tf line 33, in resource "pulsar_sink" "sink-1":
│   33: resource "pulsar_sink" "sink-1" {
│
╵

Did you test the sink can be submitted correctly?

[nodece]

@nlu90 Good catch, pulsar-io-jdbc-postgres-2.8.1.nar has been added to examples.

[nlu90]

1. I don't think we should commit the binary file pulsar-io-jdbc-postgres-2.8.1.nar into the repo. It's better to have some instructions on where to download it and how to set it up.

2. I got the following issues when trying again by running terraform init:

╷
│ Error: Failed to install provider
│
│ Error while installing apache/pulsar v1.0.0: the local package for registry.terraform.io/apache/pulsar 1.0.0 doesn't match any of the checksums previously recorded in
│ the dependency lock file (this might be because the available checksums are for packages targeting different platforms)
╵

[nodece]

@nlu90 I fix the above issues, you can use the following script to test this, make sure your workspace is clean:

gh repo clone https://github.com/streamnative/terraform-provider-pulsar
cd terraform-provider-pulsar
gh pr checkout 38
make build-dev
cd examples/sinks/
terraform init
terraform apply