From 321780496ecfed4b3ced886e0d847d3a4ecc3051 Mon Sep 17 00:00:00 2001
From: Tom Scott <tubbo@psychedeli.ca>
Date: Sat, 22 Nov 2025 21:40:52 -0500
Subject: [PATCH] add legacy releases task and info on how to build past
 releases

---
 docker-bake.hcl    | 30 ++++++++++++++++++++++++++++++
 docker-compose.yml | 11 ++++-------
 readme.md          | 22 ++++++++++++++++------
 3 files changed, 50 insertions(+), 13 deletions(-)

diff --git a/docker-bake.hcl b/docker-bake.hcl
index cfd0824..86b1421 100644
--- a/docker-bake.hcl
+++ b/docker-bake.hcl
@@ -1,19 +1,49 @@
+variable "UID" {
+  default = "1000"
+}
+
+variable "GID" {
+  default = "1000"
+}
+
 group "edge" {
   targets = ["knot-edge", "spindle-edge"]
 }
 
 target "knot-edge" {
   context = "."
+  target = "knot"
   args = {
     TAG = "master"
+    UID = UID
+    GID = GID
   }
   tags = ["tngl/knot:edge"]
 }
 
 target "spindle-edge" {
   context = "."
+  target = "spindle"
   args = {
     TAG = "master"
+    UID = UID
+    GID = GID
   }
   tags = ["tngl/spindle:edge"]
 }
+
+target "releases" {
+  name = "${APP}-${replace(TAG, ".", "-")}"
+  context = "."
+  matrix = {
+    APP = ["knot", "spindle"]
+    TAG = ["v1.11.0-alpha", "v1.10.0-alpha", "v1.9.0-alpha", "v1.8.0-alpha"]
+  }
+  target = "${APP}"
+  args = {
+    TAG = "${TAG}"
+    UID = UID
+    GID = GID
+  }
+  tags = ["tngl/${APP}:${TAG}"]
+}
diff --git a/docker-compose.yml b/docker-compose.yml
index 9bd1d36..d6f28b4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,9 +4,9 @@ services:
     image: tngl/knot:latest
     build:
       target: knot
-      args:
-        UID: 1000
-        GID: 1000
+      args: &args
+        UID: ${UID:-1000}
+        GID: ${GID:-1000}
         TAG: ${TAG:-v1.11.0-alpha}
       tags:
         - tngl/spindle:latest
@@ -29,10 +29,7 @@ services:
     image: tngl/spindle:latest
     build:
       target: spindle
-      args:
-        UID: 1000
-        GID: 1000
-        TAG: ${TAG:-v1.11.0-alpha}
+      args: *args
       tags:
         - tngl/spindle:latest
         - tngl/spindle:${TAG:-v1.11.0-alpha}
diff --git a/readme.md b/readme.md
index cd73ede..c7983df 100644
--- a/readme.md
+++ b/readme.md
@@ -36,20 +36,28 @@ docker bake knot
 docker bake spindle
 ```
 
-By default the `Dockerfile` will build the latest tag, but you can change it
-with the `TAG` build argument.
+By default this will build the latest tag, but you can target a specific tag
+like so:
 
 ```sh
-docker bake --build-arg TAG=v1.10.0-alpha
+docker bake knot-v1-10-0-alpha spindle-v1-10-0-alpha
 ```
 
-The command above for example will build the `v1.10.0-alpha` tag.
+The command above for example will build the `v1.10.0-alpha` tag for both the
+`knot` and `spindle`. They're expressed as individual bake targets, so you can
+also optionally specify just one to build at a specific version.
+
+You can also build all tagged releases:
+
+```sh
+docker bake releases
+```
 
 By default it will also create a `git` / `spindle` user with user and group ID 1000:1000,
 but you can change it with the `UID` and `GID` build arguments.
 
 ```sh
-docker bake --build-arg UID=$(id -u) --build-arg GID=$(id -g)
+docker bake UID=$(id -u) GID=$(id -g)
 ```
 
 The command above for example will create a user with the host user's UID and GID.
@@ -62,7 +70,9 @@ it from the `:latest` release:
 
 ```sh
 docker bake edge
-# or, with a specific target image
+#
+# or, with a specific target image...
+#
 docker bake edge-knot
 docker bake edge-spindle
 ```
-- 
2.51.2