feat: Allow attaching the volume in machines.create

Author: tomasol

README.md

@@ -63,7 +63,7 @@ VOLUME_ID=$(obelisk client execution submit -f --json activity-flyio:fly-http/vo
     }' | jq -r '.[-1].ok.ok.id')
 ```
 
-Destroy the volume:
+Delete the volume:
 ```sh
 obelisk client execution submit -f activity-flyio:fly-http/volumes@1.0.0-beta.delete -- \
 \"$FLY_APP_NAME\" \"$VOLUME_ID\"

fly-http/src/machine.rs

@@ -20,7 +20,7 @@ pub(crate) mod ser {
     use crate::activity_flyio::fly_http::regions::Region;
     use crate::exports::activity_flyio::fly_http::machines::{
         CpuKind, ExecResponse, GuestConfig, HostStatus, InitConfig, Machine, MachineConfig,
-        MachineRestart, RestartPolicy, StopConfig,
+        MachineRestart, Mount, RestartPolicy, StopConfig,
     };
     use serde::de::DeserializeOwned;
     use serde::{Deserialize, Serialize};
@@ -77,6 +77,7 @@ pub(crate) mod ser {
         env: Option<HashMap<String, String>>,
         restart: Option<MachineRestartSer>,
         stop_config: Option<StopConfigSer>,
+        mounts: Option<Vec<Mount>>,
     }
 
     #[derive(Serialize, Deserialize, Debug)]
@@ -160,6 +161,12 @@ pub(crate) mod ser {
         timeout: Option<u64>,
     }
 
+    #[derive(Serialize, Deserialize, Debug)]
+    pub(crate) struct MountSer {
+        volume: String,
+        path: String,
+    }
+
     #[derive(Deserialize)]
     pub(crate) struct MachineCreateResponseSer {
         pub(crate) id: String,
@@ -306,6 +313,7 @@ pub(crate) mod ser {
                 restart,
                 init,
                 stop_config,
+                mounts: wit.mounts,
             }
         }
     }
@@ -353,6 +361,7 @@ pub(crate) mod ser {
                 restart,
                 init,
                 stop_config,
+                mounts: ser.mounts,
             }
         }
     }

fly-http/src/snapshots/fly_http__machine__tests__machine_deserialization.snap

@@ -40,6 +40,7 @@ MachineSer {
             },
         ),
         stop_config: None,
+        mounts: None,
     },
     created_at: "2025-09-10T12:03:04Z",
     updated_at: "2025-09-10T12:03:07Z",

fly-http/wit/activity-flyio_fly-http@1.0.0-beta/fly.wit

@@ -59,6 +59,12 @@ interface machines {
         env: option<list<tuple<string, string>>>,
         restart: option<machine-restart>,
         stop-config: option<stop-config>,
+        mounts: option<list<mount>>,
+    }
+
+    record mount {
+        volume: string,
+        path: string,
     }
 
     record guest-config {

scripts/fly-http-machine-config.json.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-cat  <<EOF
+cat <<EOF
 {
     "image": "$FLY_IMAGE",
     "init": {
@@ -13,6 +13,14 @@ cat  <<EOF
     },
     "restart": {
         "policy": "no"
-    }
+    }$(if [ -n "$VOLUME_ID" ]; then
+        echo ',
+    "mounts": [
+        {
+            "volume": "'"$VOLUME_ID"'",
+            "path": "/opt"
+        }
+    ]'
+    fi)
 }
 EOF