Allow to set user_data in server resource (#231)

* allow to set user_data in server rs

* update server rs/ds docs

* rename user_data to user_data_base64

* allow plain text user_data

if both `user_data` and `user_data_base64`
are set, `user_data` will be ignored.

* Revert "allow plain text user_data"

This reverts commit 1973415.

* prevent malformed base64 user_data

gridscale/datasource_gridscale_server.go

@@ -291,6 +291,11 @@ func dataSourceGridscaleServer() *schema.Resource {
 				Computed:    true,
 				Elem:        &schema.Schema{Type: schema.TypeString},
 			},
+			"user_data_base64": {
+				Type:        schema.TypeString,
+				Description: "For system configuration on first boot. May contain cloud-config data or shell scripting, encoded as base64 string. Supported tools are cloud-init, Cloudbase-init, and Ignition.",
+				Computed:    true,
+			},
 		},
 	}
 }
@@ -362,6 +367,10 @@ func dataSourceGridscaleServerRead(d *schema.ResourceData, meta interface{}) err
 		return fmt.Errorf("%s error setting labels: %v", errorPrefix, err)
 	}
 
+	if err = d.Set("user_data_base64", server.Properties.UserData); err != nil {
+		return fmt.Errorf("%s error setting user_data_base64: %v", errorPrefix, err)
+	}
+
 	//Get storages
 	storages := make([]interface{}, 0)
 	for _, value := range server.Properties.Relations.Storages {

gridscale/relation-manager/serverRelationManager.go

@@ -235,7 +235,7 @@ func (c *ServerRelationManger) IsShutdownRequired(ctx context.Context) bool {
 	var shutdownRequired bool
 	d := c.getData()
 	hasServerNetListChange := c.hasServerNetworkListChanged(ctx)
-	if d.HasChanges("cores", "memory", "ipv4", "ipv6", "hardware_profile", "hardware_profile_config", "auto_recovery") || hasServerNetListChange {
+	if d.HasChanges("cores", "memory", "ipv4", "ipv6", "hardware_profile", "hardware_profile_config", "auto_recovery", "user_data_base64") || hasServerNetListChange {
 		shutdownRequired = true
 	}
 	return shutdownRequired

gridscale/resource_gridscale_server.go

@@ -2,6 +2,7 @@ package gridscale
 
 import (
 	"context"
+	"encoding/base64"
 	"fmt"
 	"log"
 	"net/http"
@@ -397,6 +398,12 @@ func resourceGridscaleServer() *schema.Resource {
 				Optional:    true,
 				Elem:        &schema.Schema{Type: schema.TypeString},
 			},
+			"user_data_base64": {
+				Type:        schema.TypeString,
+				Description: "For system configuration on first boot. May contain cloud-config data or shell scripting, encoded as base64 string. Supported tools are cloud-init, Cloudbase-init, and Ignition.",
+				Optional:    true,
+				Computed:    true,
+			},
 		},
 		Timeouts: &schema.ResourceTimeout{
 			Create: schema.DefaultTimeout(5 * time.Minute),
@@ -560,6 +567,10 @@ func resourceGridscaleServerRead(d *schema.ResourceData, meta interface{}) error
 		return fmt.Errorf("%s error setting labels: %v", errorPrefix, err)
 	}
 
+	if err = d.Set("user_data_base64", server.Properties.UserData); err != nil {
+		return fmt.Errorf("%s error setting user_data_base64: %v", errorPrefix, err)
+	}
+
 	//Get storages
 	storages := make([]interface{}, 0)
 	for _, value := range server.Properties.Relations.Storages {
@@ -756,6 +767,15 @@ func resourceGridscaleServerCreate(d *schema.ResourceData, meta interface{}) err
 		requestBody.AutoRecovery = autoRecovery
 	}
 
+	if val, ok := d.GetOk("user_data_base64"); ok {
+		userData := val.(string)
+		// check if user_data is base64 encoded
+		if _, err := base64.StdEncoding.DecodeString(userData); err != nil {
+			return fmt.Errorf("user_data_base64 is not base64 encoded")
+		}
+		requestBody.UserData = &userData
+	}
+
 	profile := d.Get("hardware_profile").(string)
 	switch profile {
 	case "legacy":
@@ -1009,6 +1029,15 @@ func resourceGridscaleServerUpdate(d *schema.ResourceData, meta interface{}) err
 			requestBody.AutoRecovery = &autoRecovery
 		}
 
+		if val, ok := d.GetOk("user_data_base64"); ok {
+			userData := val.(string)
+			// check if user_data is base64 encoded
+			if _, err := base64.StdEncoding.DecodeString(userData); err != nil {
+				return fmt.Errorf("user_data_base64 is not base64 encoded")
+			}
+			requestBody.UserData = &userData
+		}
+
 		updateSequence := func(ctx context.Context) error {
 			//Execute the update request
 			err = gsc.UpdateServer(ctx, d.Id(), requestBody)

website/docs/d/server.html.md

@@ -74,6 +74,7 @@ This resource exports the following attributes:
 * `location_uuid` - The location this server is placed. The location of a resource is determined by it's project.
 * `labels` - List of labels in the format [ "label1", "label2" ].
 * `hardware_profile` - The hardware profile of the server.
+* `user_data_base64` - For system configuration on first boot. May contain cloud-config data or shell scripting, encoded as base64 string. Supported tools are cloud-init, Cloudbase-init, and Ignition.
 * `hardware_profile_config` - Specifies the custom hardware settings for the virtual machine. Note: hardware_profile and hardware_profile_config parameters can't be used at the same time.
     * `machinetype` - Values: `"i440fx"`, `"q35_bios"`, `"q35_uefi"`.
     * `storage_device` - Values: `"ide"`, `"sata"`, `"virtio_scsi"`, `"virtio_block"`.

website/docs/r/server.html.md

@@ -91,6 +91,8 @@ The following arguments are supported:
 
 * `auto_recovery` - (Optional) If the server should be auto-started in case of a failure (default=true).
 
+* `user_data_base64` - (Optional, Computed) For system configuration on first boot. May contain cloud-config data or shell scripting, encoded as base64 string. Supported tools are cloud-init, Cloudbase-init, and Ignition.
+
 * `hardware_profile` - (Optional, Computed) The hardware profile of the Server. Options are default, legacy, nested, cisco_csr, sophos_utm, f5_bigip and q35 at the moment of writing. If it is not set, the backend will set it by default. Check [the official docs](https://gridscale.io/en/api-documentation/index.html#operation/createServer).
 
 * `ipv4` - (Optional) The UUID of the IPv4 address of the server. (***NOTE: The server will NOT automatically be connected to the public network; to give it access to the internet, please add server to the public network.)
@@ -229,6 +231,7 @@ This resource exports the following attributes:
 * `location_uuid` - The location this server is placed. The location of a resource is determined by it's project.
 * `labels` - List of labels in the format [ "label1", "label2" ].
 * `hardware_profile` - The hardware profile of the server.
+* `user_data_base64` - See Argument Reference above.
 * `hardware_profile_config` - (See Argument Reference above.
     * `machinetype` - See Argument Reference above.
     * `storage_device` - See Argument Reference above.