Initial commit based on gardener-attic/gardener-extensions@e879ddb

```noteworthy developer
This extension controller has been moved from the [gardener/gardener-extensions](https://github.com/gardener/gardener-extensions) repository based on commit [e879ddb](gardener-attic/gardener-extensions@e879ddb) to this repository.
```

.ci/component_descriptor

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+"$(dirname $0)"/../vendor/github.com/gardener/gardener-extensions/.ci/component_descriptor "$(dirname $0)"/..

.ci/pipeline_definitions

@@ -0,0 +1,43 @@
+gardener-extension-provider-alicloud:
+  template: 'default'
+  base_definition:
+    repo: ~
+    traits:
+      version:
+        preprocess: 'inject-commit-hash'
+      publish:
+        dockerimages:
+          gardener-extension-provider-alicloud:
+            registry: 'gcr-readwrite'
+            image: 'eu.gcr.io/gardener-project/gardener/extensions/provider-alicloud'
+            dockerfile: 'Dockerfile'
+            target: gardener-extension-provider-alicloud
+    steps: ~
+  jobs:
+    head-update:
+      traits:
+        component_descriptor: ~
+        draft_release: ~
+    pull-request:
+      traits:
+        pull-request: ~
+        component_descriptor: ~
+    release:
+      traits:
+        version:
+          preprocess: 'finalize'
+        release:
+          nextversion: 'bump_minor'
+          next_version_callback: '.ci/prepare_release'
+          release_callback: '.ci/prepare_release'
+        slack:
+          default_channel: 'internal_scp_workspace'
+          channel_cfgs:
+            internal_scp_workspace:
+              channel_name: 'k8s-gardener'
+              slack_cfg_name: 'scp_workspace'
+        component_descriptor: ~
+        publish:
+          dockerimages:
+            gardener-extension-provider-alicloud:
+              tag_as_latest: true

.ci/prepare_release

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+"$(dirname $0)"/../vendor/github.com/gardener/gardener-extensions/.ci/prepare_release "$(dirname $0)"/.. github.com/gardener gardener-extension-provider-alicloud

.ci/set_dependency_version

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+"$(dirname $0)"/../vendor/github.com/gardener/gardener-extensions/.ci/set_dependency_version

.dockerignore

@@ -0,0 +1,22 @@
+# Ignore everything
+**
+
+# Exclude folders relevant for build
+!charts/
+!cmd/
+!docs/
+!example/
+!hack/
+!pkg/
+!test/
+!tools/
+!vendor/
+
+!.gitignore
+!.golangci.yaml
+
+!go.mod
+!go.sum
+
+!VERSION
+!Makefile

.github/ISSUE_TEMPLATE/bug.md

@@ -0,0 +1,22 @@
+---
+name: Bug Report
+about: Report a bug encountered while working with this Gardener extension
+labels: kind/bug
+
+---
+
+**What happened**:
+
+**What you expected to happen**:
+
+**How to reproduce it (as minimally and precisely as possible)**:
+
+**Anything else we need to know?**:
+
+**Environment**:
+
+- Gardener version (if relevant):
+- Extension version:
+- Kubernetes version (use `kubectl version`):
+- Cloud provider or hardware configuration:
+- Others:

.github/ISSUE_TEMPLATE/feature.md

@@ -0,0 +1,10 @@
+---
+name: Enhancement Request
+about: Suggest an enhancement for this extension
+labels: kind/enhancement
+
+---
+
+**What would you like to be added**:
+
+**Why is this needed**:

.github/ISSUE_TEMPLATE/support.md

@@ -0,0 +1,14 @@
+---
+name: Support Request
+about: Support request or question relating to this extension
+labels: kind/question
+
+---
+
+<!--
+STOP -- PLEASE READ!
+
+GitHub is not the right place for support requests.
+
+If you're looking for help, please post your question on the [Kubernetes Slack](http://slack.k8s.io/) ([#gardener](https://kubernetes.slack.com/messages/gardener) channel) or join our [weekly meetings](https://github.com/gardener/documentation/blob/master/CONTRIBUTING.md#weekly-meeting).
+-->

.github/pull_request_template.md

@@ -0,0 +1,20 @@
+**What this PR does / why we need it**:
+
+**Which issue(s) this PR fixes**:
+Fixes #
+
+**Special notes for your reviewer**:
+
+**Release note**:
+<!--  Write your release note:
+1. Enter your release note in the below block.
+2. If no release note is required, just write "NONE" within the block.
+
+Format of block header: <category> <target_group>
+Possible values:
+- category:       improvement|noteworthy|action
+- target_group:   user|operator|developer
+-->
+```improvement operator
+
+```

.gitignore

@@ -0,0 +1,20 @@
+/.kube-secrets
+/tmp
+/dev
+/local
+**/dev
+/bin
+
+.vscode
+.idea
+.DS_Store
+*~
+
+TODO
+
+# Virtual go & fuse
+.virtualgo
+.fuse_hidden*
+
+# Packr generated files
+*-packr.go

.test-defs/provider-alicloud.yaml

@@ -0,0 +1,17 @@
+kind: TestDefinition
+metadata:
+  name: gen-provider-alicloud
+spec:
+  owner: [email protected]
+  description: Generates the alicloud provider specific configurations
+  activeDeadlineSeconds: 3600
+
+  command: [bash, -c]
+  args:
+  - >-
+    go run -mod=vendor ./test/tm/generator.go
+    --infrastructure-provider-config-filepath=$INFRASTRUCTURE_PROVIDER_CONFIG_FILEPATH
+    --controlplane-provider-config-filepath=$CONTROLPLANE_PROVIDER_CONFIG_FILEPATH
+    --zone=$ZONE
+
+  image: golang:1.13.0

CODEOWNERS

@@ -0,0 +1,3 @@
+# gardener-extension-provider-alicloud maintainers
+*   @gardener/gardener-extension-provider-alicloud-maintainers
+*   @gardener/gardener-maintainers

CONTRIBUTING.md

@@ -0,0 +1 @@
+Please refer to the [Gardener contributor guide](https://github.com/gardener/documentation/blob/master/CONTRIBUTING.md).

Dockerfile

@@ -0,0 +1,13 @@
+############# builder
+FROM golang:1.13.4 AS builder
+
+WORKDIR /go/src/github.com/gardener/gardener-extension-provider-alicloud
+COPY . .
+RUN make install-requirements && make VERIFY=true all
+
+############# gardener-extension-provider-alicloud
+FROM alpine:3.11.3 AS gardener-extension-provider-alicloud
+
+COPY charts /charts
+COPY --from=builder /go/bin/gardener-extension-provider-alicloud /gardener-extension-provider-alicloud
+ENTRYPOINT ["/gardener-extension-provider-alicloud"]