Add Alpine 3.15 and 3.17 images

To facilitate debugging of ghc#22237.

images/alpine.dhall

@@ -13,6 +13,9 @@ let
 let
   Image = ../Image.dhall
 
+let
+  docker_base_url: Text = "registry.gitlab.haskell.org/ghc/ci-images"
+
 let
   coreBuildDepends: List Text =
     [ "alpine-sdk"
@@ -58,13 +61,14 @@ let
     , "ttf-dejavu"
     ]
 
-let
-  buildDepends: List Text = coreBuildDepends # docsBuildDepends
+let installPkgs: List Text -> CF.Type = \(pkgs: List Text) ->
+      CF.run "Installing packages: ${Prelude.Text.concatSep " " pkgs}"
+      [ "apk add --no-cache ${Prelude.Text.concatSep " " pkgs}" ]
 
-let installDepsStep: CF.Type =
-      CF.run "Installing GHC build dependencies"
-      [ "apk add --no-cache ${Prelude.Text.concatSep " " buildDepends}" ]
+let installGhcDepsStep: CF.Type =
+      installPkgs (coreBuildDepends # docsBuildDepends)
 
+-- Wasm-specific dependencies:
 let installGlibcStep: CF.Type =
       CF.run "Installing alpine-pkg-glibc"
       [ "curl -f -L --retry 5 https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub -o /etc/apk/keys/sgerrand.rsa.pub"
@@ -111,29 +115,102 @@ let
 
 let
   images: List Image.Type =
-  [ Image::
+  [ Image ::
     { name = "x86_64-linux-alpine3_12"
     , runnerTags = [ "x86_64-linux" ]
     , image =
         CF.from "alpine:3.12.12"
       # [ CF.Statement.Shell ["/bin/ash", "-eo", "pipefail", "-c"] ]
-      # installDepsStep
-      # installGlibcStep
+      # installGhcDepsStep
+      # installPkgs ["llvm10"]
       # fetchGhcStep (Ghc.Bindist.BindistSpec { version = ghcVersion, triple = "x86_64-alpine3_12-linux-static" })
       # Cabal.install (Cabal.Type.FromBindist "https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.6.2.0/cabal-install-3.6.2.0-x86_64-linux-alpine-static.tar.xz")
       # CF.run "update cabal index" [ "$CABAL update"]
       # HaskellTools.installGhcBuildDeps
       # createUserStep
-      # installWasmDepsStep
       # [ CF.Statement.Cmd ["bash"] ]
-    },
-    Image ::
+    }
+  , Image ::
+    { name = "x86_64-linux-alpine3_12-wasm"
+    , runnerTags = [ "x86_64-linux" ]
+    , needs = [ "x86_64-linux-alpine3_12" ]
+    , image =
+        CF.from "${docker_base_url}/x86_64-linux-alpine3_12:latest"
+      # [ CF.Statement.User "root" ]
+      # installGlibcStep
+      # [ CF.Statement.User "ghc"
+        , CF.Statement.Cmd ["bash"]
+        ]
+      # installWasmDepsStep
+    }
+  , Image ::
     { name = "i386-linux-alpine3_12"
     , runnerTags = [ "x86_64-linux" ]
     , image =
         CF.from "i386/alpine:3.12.12"
       # [ CF.Statement.Shell ["/bin/ash", "-eo", "pipefail", "-c"] ]
-      # installDepsStep
+      # installGhcDepsStep
+      # installPkgs ["llvm10"]
+      # fetchGhcStep (Ghc.Bindist.BindistURL "https://downloads.haskell.org/~ghcup/unofficial-bindists/ghc/9.0.1/ghc-9.0.1-i386-alpine-linux.tar.xz")
+      # Cabal.install (Cabal.Type.FromBindist "https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.6.2.0/cabal-install-3.6.2.0-i386-linux-alpine.tar.xz")
+      # CF.run "update cabal index" [ "$CABAL update"]
+      # HaskellTools.installGhcBuildDeps
+      # createUserStep
+      # [ CF.Statement.Cmd ["bash"] ]
+    }
+  , Image ::
+    { name = "x86_64-linux-alpine3_15"
+    , runnerTags = [ "x86_64-linux" ]
+    , image =
+        CF.from "alpine:3.15.6"
+      # [ CF.Statement.Shell ["/bin/ash", "-eo", "pipefail", "-c"] ]
+      # installGhcDepsStep
+      # installPkgs ["llvm12"]
+      # fetchGhcStep (Ghc.Bindist.BindistSpec { version = ghcVersion, triple = "x86_64-alpine3_12-linux-static" })
+      # Cabal.install (Cabal.Type.FromBindist "https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.6.2.0/cabal-install-3.6.2.0-x86_64-linux-alpine-static.tar.xz")
+      # CF.run "update cabal index" [ "$CABAL update"]
+      # HaskellTools.installGhcBuildDeps
+      # createUserStep
+      # [ CF.Statement.Cmd ["bash"] ]
+    }
+  , Image ::
+    { name = "i386-linux-alpine3_15"
+    , runnerTags = [ "x86_64-linux" ]
+    , image =
+        CF.from "i386/alpine:3.15.6"
+      # [ CF.Statement.Shell ["/bin/ash", "-eo", "pipefail", "-c"] ]
+      # installGhcDepsStep
+      # installPkgs ["llvm12"]
+      # fetchGhcStep (Ghc.Bindist.BindistURL "https://downloads.haskell.org/~ghcup/unofficial-bindists/ghc/9.0.1/ghc-9.0.1-i386-alpine-linux.tar.xz")
+      # Cabal.install (Cabal.Type.FromBindist "https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.6.2.0/cabal-install-3.6.2.0-i386-linux-alpine.tar.xz")
+      # CF.run "update cabal index" [ "$CABAL update"]
+      # HaskellTools.installGhcBuildDeps
+      # createUserStep
+      # [ CF.Statement.Cmd ["bash"] ]
+    }
+  , Image ::
+    { name = "x86_64-linux-alpine3_17"
+    , runnerTags = [ "x86_64-linux" ]
+    , image =
+        CF.from "alpine:3.17.1"
+      # [ CF.Statement.Shell ["/bin/ash", "-eo", "pipefail", "-c"] ]
+      # installGhcDepsStep
+      # installPkgs ["llvm14"]
+      # fetchGhcStep (Ghc.Bindist.BindistSpec { version = ghcVersion, triple = "x86_64-alpine3_12-linux-static" })
+      # Cabal.install (Cabal.Type.FromBindist "https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.6.2.0/cabal-install-3.6.2.0-x86_64-linux-alpine-static.tar.xz")
+      # CF.run "update cabal index" [ "$CABAL update"]
+      # HaskellTools.installGhcBuildDeps
+      # createUserStep
+      # [ CF.Statement.Cmd ["bash"] ]
+    }
+  , Image ::
+    { name = "i386-linux-alpine3_17"
+    , runnerTags = [ "x86_64-linux" ]
+    , image =
+        CF.from "i386/alpine:3.17.1"
+      # [ CF.Statement.Shell ["/bin/ash", "-eo", "pipefail", "-c"] ]
+      # installGhcDepsStep
+      # installPkgs ["llvm14"]
       # fetchGhcStep (Ghc.Bindist.BindistURL "https://downloads.haskell.org/~ghcup/unofficial-bindists/ghc/9.0.1/ghc-9.0.1-i386-alpine-linux.tar.xz")
       # Cabal.install (Cabal.Type.FromBindist "https://downloads.haskell.org/~ghcup/unofficial-bindists/cabal/3.6.2.0/cabal-install-3.6.2.0-i386-linux-alpine.tar.xz")
       # CF.run "update cabal index" [ "$CABAL update"]