feat(docker): Multi-stage Builds

apps/dokploy/components/dashboard/application/build/show.tsx

@@ -37,6 +37,7 @@ const mySchema = z.discriminatedUnion("buildType", [
 			})
 			.min(1, "Dockerfile required"),
 		dockerContextPath: z.string().nullable().default(""),
+		dockerBuildStage: z.string().nullable().default(""),
 	}),
 	z.object({
 		buildType: z.literal("heroku_buildpacks"),
@@ -86,6 +87,7 @@ export const ShowBuildChooseForm = ({ applicationId }: Props) => {
 					...(data.buildType && {
 						dockerfile: data.dockerfile || "",
 						dockerContextPath: data.dockerContextPath || "",
+						dockerBuildStage: data.dockerBuildStage || "",
 					}),
 				});
 			} else {
@@ -106,6 +108,8 @@ export const ShowBuildChooseForm = ({ applicationId }: Props) => {
 			dockerfile: data.buildType === "dockerfile" ? data.dockerfile : null,
 			dockerContextPath:
 				data.buildType === "dockerfile" ? data.dockerContextPath : null,
+			dockerBuildStage:
+					data.buildType === "dockerfile" ? data.dockerBuildStage : null,
 		})
 			.then(async () => {
 				toast.success("Build type saved");
@@ -241,6 +245,34 @@ export const ShowBuildChooseForm = ({ applicationId }: Props) => {
 										);
 									}}
 								/>
+
+								<FormField
+									control={form.control}
+									name="dockerBuildStage"
+									render={({ field }) => {
+										return (
+											<FormItem>
+												<div className="space-y-0.5">
+													<FormLabel>Docker Build Stage</FormLabel>
+													<FormDescription>
+														Allows you to target a specific stage in a Multi-stage
+														Dockerfile. If empty, Docker defaults to build
+														the last defined stage.
+													</FormDescription>
+												</div>
+												<FormControl>
+													<Input
+														placeholder={
+															"E.g. production"
+														}
+														{...field}
+														value={field.value ?? ""}
+													/>
+												</FormControl>
+											</FormItem>
+										)
+									}}
+								/>
 							</>
 						)}
 

apps/dokploy/drizzle/0033_new_mandrill.sql

@@ -0,0 +1 @@
+ALTER TABLE "application" ADD COLUMN "dockerBuildStage" text;

apps/dokploy/drizzle/meta/_journal.json

@@ -232,6 +232,13 @@
       "when": 1723705257806,
       "tag": "0032_flashy_shadow_king",
       "breakpoints": true
+    },
+    {
+      "idx": 33,
+      "version": "6",
+      "when": 1725167062595,
+      "tag": "0033_new_mandrill",
+      "breakpoints": true
     }
   ]
 }

apps/dokploy/server/api/routers/application.ts

@@ -193,6 +193,7 @@ export const applicationRouter = createTRPCRouter({
 				dockerfile: input.dockerfile,
 				publishDirectory: input.publishDirectory,
 				dockerContextPath: input.dockerContextPath,
+				dockerBuildStage: input.dockerBuildStage,
 			});
 
 			return true;

apps/dokploy/server/db/schema/application.ts

@@ -142,6 +142,7 @@ export const applications = pgTable("application", {
 	),
 	dockerfile: text("dockerfile"),
 	dockerContextPath: text("dockerContextPath"),
+	dockerBuildStage: text("dockerBuildStage"),
 	// Drop
 	dropBuildPath: text("dropBuildPath"),
 	// Docker swarm json
@@ -358,6 +359,7 @@ export const apiSaveBuildType = createSchema
 		buildType: true,
 		dockerfile: true,
 		dockerContextPath: true,
+		dockerBuildStage: true,
 	})
 	.required()
 	.merge(createSchema.pick({ publishDirectory: true }));

apps/dokploy/server/utils/builders/docker-file.ts

@@ -12,7 +12,7 @@ export const buildCustomDocker = async (
 	application: ApplicationNested,
 	writeStream: WriteStream,
 ) => {
-	const { appName, env, publishDirectory, buildArgs } = application;
+	const { appName, env, publishDirectory, buildArgs, dockerBuildStage } = application;
 	const dockerFilePath = getBuildAppDirectory(application);
 	try {
 		const image = `${appName}`;
@@ -25,6 +25,10 @@ export const buildCustomDocker = async (
 
 		const commandArgs = ["build", "-t", image, "-f", dockerFilePath, "."];
 
+		if (!!dockerBuildStage) {
+			commandArgs.push("--target", dockerBuildStage);
+		}
+
 		for (const arg of args) {
 			commandArgs.push("--build-arg", arg);
 		}