wip:docs: add HuaweiCloud Provider Mirror Guide

docs/guides/setting-huaweicloud-mirror.md

@@ -0,0 +1,92 @@
+---
+page_title: "HuaweiCloud Provider Mirror Guide"
+---
+
+# Setting a Network Mirror
+
+Sometimes, running the `terraform init` command to download and install providers can be too slow,
+or it may even fail as follows:
+
+```text
+Initializing provider plugins...
+- Finding huaweicloud/huaweicloud versions matching "1.65.0"...
+╷
+│ Error: Failed to query available provider packages
+│ 
+│ Could not retrieve the list of available versions for provider huaweicloud/huaweicloud: could not connect to registry.terraform.io: failed to request discovery document: Get
+│ "https://registry.terraform.io/.well-known/terraform.json": dial tcp 3.165.82.91:443: connect: no route to host
+╵
+```
+
+or
+
+```text
+Initializing provider plugins...
+- Finding huaweicloud/huaweicloud versions matching "1.66.0"...
+╷
+│ Error: Failed to query available provider packages
+│
+│ Could not retrieve the list of available versions for provider huaweicloud/huaweicloud: could not query provider registry for registry.terraform.io/huaweicloud/huaweicloud: the
+│ request failed after 3 attempts, please try again later: Get "https://registry.terraform.io/v1/providers/huaweicloud/huaweicloud/versions": context deadline exceeded
+│ (Client.Timeout exceeded while awaiting headers)
+╵
+```
+
+Since Terraform CLI v0.13.2, it provides the
+[network_mirror](https://developer.hashicorp.com/terraform/cli/config/config-file#network_mirror) feature.
+To fix the issues of downloading HuaweiCloud providers, HuaweiCloud provides a mirror service.
+You can set the following configuration in the [CLI Configuration File](https://developer.hashicorp.com/terraform/cli/config/config-file):
+
+```terraform
+provider_installation {
+  network_mirror {
+    url = "https://tf-mirror.obs.cn-north-4.myhuaweicloud.com/"
+    # Set HuaweiCloud providers to download from the mirror service.
+    include = ["registry.terraform.io/huaweicloud/huaweicloud"]
+  }
+  direct {
+    # For other providers, download from the Terraform Registry.
+    exclude = ["registry.terraform.io/huaweicloud/huaweicloud"]
+  }
+}
+```
+
+## Example on Linux
+
+- Create CLI configuration file `.terraformrc` and placed directly in the home directory of the relevant user.
+
+```shell
+tee ~/.terraformrc <<-'EOF'
+provider_installation {
+  network_mirror {
+    url = "https://tf-mirror.obs.cn-north-4.myhuaweicloud.com/"
+    # Set HuaweiCloud providers to download from the mirror service.
+    include = ["registry.terraform.io/huaweicloud/huaweicloud"]
+  }
+  direct {
+    # For other providers, download from the Terraform Registry.
+    exclude = ["registry.terraform.io/huaweicloud/huaweicloud"]
+  }
+}
+EOF
+```
+
+- When you run `terraform init` you will find the following output in the log file:
+
+```text
+2024-07-29T11:02:36.511+0800 [INFO]  Go runtime version: go1.22.1
+2024-07-29T11:02:36.511+0800 [INFO]  CLI args: []string{"terraform", "init"}
+2024-07-29T11:02:36.511+0800 [DEBUG] Attempting to open CLI config file: /home/huawei/.terraformrc
+2024-07-29T11:02:36.511+0800 [INFO]  Loading CLI configuration from /home/huawei/.terraformrc
+2024-07-29T11:02:36.511+0800 [DEBUG] checking for credentials in "/home/huawei/.terraform.d/plugins"
+2024-07-29T11:02:36.511+0800 [DEBUG] Explicit provider installation configuration is set
+2024-07-29T11:02:36.512+0800 [INFO]  CLI command args: []string{"init"}
+2024-07-29T11:02:36.514+0800 [DEBUG] New state was assigned lineage "f234445e-7ddf-cf48-ade2-bb3ba4a9b5aa"
+2024-07-29T11:02:36.514+0800 [DEBUG] checking for provisioner in "."
+2024-07-29T11:02:36.523+0800 [DEBUG] checking for provisioner in "/usr/bin"
+2024-07-29T11:02:36.523+0800 [DEBUG] checking for provisioner in "/home/huawei/.terraform.d/plugins"
+2024-07-29T11:02:36.525+0800 [DEBUG] Querying available versions of provider registry.terraform.io/huaweicloud/huaweicloud at network mirror https://tf-mirror.obs.cn-north-4.myhuaweicloud.com/
+2024-07-29T11:02:36.525+0800 [DEBUG] GET https://tf-mirror.obs.cn-north-4.myhuaweicloud.com/registry.terraform.io/huaweicloud/huaweicloud/index.json
+2024-07-29T11:02:36.919+0800 [DEBUG] Finding package URL for registry.terraform.io/huaweicloud/huaweicloud v1.66.3 on linux_amd64 via network mirror https://tf-mirror.obs.cn-north-4.myhuaweicloud.com/
+2024-07-29T11:02:36.919+0800 [DEBUG] GET https://tf-mirror.obs.cn-north-4.myhuaweicloud.com/registry.terraform.io/huaweicloud/huaweicloud/1.66.3.json
+```