feat: source specific version of packer and build with specific go

.github/workflows/ami-release-nix-single.yml

@@ -40,7 +40,13 @@ jobs:
         run: |
           echo "sha=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
 
-      - uses: DeterminateSystems/nix-installer-action@main
+      - name: Install nix
+        uses: cachix/install-nix-action@v27
+        with:
+          install_url: https://releases.nixos.org/nix/nix-2.29.1/install
+          extra_nix_config: |
+            substituters = https://cache.nixos.org https://nix-postgres-artifacts.s3.amazonaws.com
+            trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=% cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
 
       - name: Set PostgreSQL version environment variable
         run: echo "POSTGRES_MAJOR_VERSION=${{ github.event.inputs.postgres_version }}" >> $GITHUB_ENV
@@ -57,18 +63,18 @@ jobs:
         env:
           POSTGRES_MAJOR_VERSION: ${{ env.POSTGRES_MAJOR_VERSION }}
         run: |
-          packer init amazon-arm64-nix.pkr.hcl
           GIT_SHA=${{ steps.get_sha.outputs.sha }}
-          packer build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}"  -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" -var "ansible_arguments=-e postgresql_major=${POSTGRES_MAJOR_VERSION}"  amazon-arm64-nix.pkr.hcl
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- init amazon-arm64-nix.pkr.hcl
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}"  -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" -var "ansible_arguments=-e postgresql_major=${POSTGRES_MAJOR_VERSION}"  amazon-arm64-nix.pkr.hcl
 
       - name: Build AMI stage 2
         env:
           POSTGRES_MAJOR_VERSION: ${{ env.POSTGRES_MAJOR_VERSION }}
         run: |
-          packer init stage2-nix-psql.pkr.hcl
           GIT_SHA=${{ steps.get_sha.outputs.sha }}
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- init stage2-nix-psql.pkr.hcl
           POSTGRES_MAJOR_VERSION=${{ env.POSTGRES_MAJOR_VERSION }}
-          packer build -var "git_sha=${GIT_SHA}" -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var "postgres_major_version=${POSTGRES_MAJOR_VERSION}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" stage2-nix-psql.pkr.hcl
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- build -var "git_sha=${GIT_SHA}" -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var "postgres_major_version=${POSTGRES_MAJOR_VERSION}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" stage2-nix-psql.pkr.hcl
 
       - name: Grab release version
         id: process_release_version

.github/workflows/ami-release-nix.yml

@@ -24,7 +24,13 @@ jobs:
       - name: Checkout Repo
         uses: supabase/postgres/.github/actions/shared-checkout@HEAD
 
-      - uses: DeterminateSystems/nix-installer-action@main
+      - name: Install nix
+        uses: cachix/install-nix-action@v27
+        with:
+          install_url: https://releases.nixos.org/nix/nix-2.29.1/install
+          extra_nix_config: |
+            substituters = https://cache.nixos.org https://nix-postgres-artifacts.s3.amazonaws.com
+            trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=% cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
 
       - name: Set PostgreSQL versions
         id: set-versions
@@ -52,7 +58,14 @@ jobs:
           aws-region: "us-east-1"
           output-credentials: true
           role-duration-seconds: 7200
-      - uses: DeterminateSystems/nix-installer-action@main
+
+      - name: Install nix
+        uses: cachix/install-nix-action@v27
+        with:
+          install_url: https://releases.nixos.org/nix/nix-2.29.1/install
+          extra_nix_config: |
+            substituters = https://cache.nixos.org https://nix-postgres-artifacts.s3.amazonaws.com
+            trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=% cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
 
       - name: Run checks if triggered manually
         if: ${{ github.event_name == 'workflow_dispatch' }}
@@ -78,19 +91,19 @@ jobs:
         env:
           POSTGRES_MAJOR_VERSION: ${{ env.POSTGRES_MAJOR_VERSION }}
         run: |
-          packer init amazon-arm64-nix.pkr.hcl
           GIT_SHA=${{github.sha}}
+          nix  run github:supabase/postgres/${GIT_SHA}#packer -- init amazon-arm64-nix.pkr.hcl
           # why is postgresql_major defined here instead of where the _three_ other postgresql_* variables are defined?
-          packer build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}"  -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" -var "ansible_arguments=-e postgresql_major=${POSTGRES_MAJOR_VERSION}"  amazon-arm64-nix.pkr.hcl
+          nix  run github:supabase/postgres/${GIT_SHA}#packer -- build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}"  -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" -var "ansible_arguments=-e postgresql_major=${POSTGRES_MAJOR_VERSION}"  amazon-arm64-nix.pkr.hcl
 
       - name: Build AMI stage 2
         env:
           POSTGRES_MAJOR_VERSION: ${{ env.POSTGRES_MAJOR_VERSION }}
         run: |
-          packer init stage2-nix-psql.pkr.hcl
           GIT_SHA=${{github.sha}}
+          nix  run github:supabase/postgres/${GIT_SHA}#packer -- init stage2-nix-psql.pkr.hcl
           POSTGRES_MAJOR_VERSION=${{ env.POSTGRES_MAJOR_VERSION }}
-          packer build -var "git_sha=${GIT_SHA}" -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var "postgres_major_version=${POSTGRES_MAJOR_VERSION}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" stage2-nix-psql.pkr.hcl
+          nix  run github:supabase/postgres/${GIT_SHA}#packer -- build -var "git_sha=${GIT_SHA}" -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var "postgres_major_version=${POSTGRES_MAJOR_VERSION}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" stage2-nix-psql.pkr.hcl
 
       - name: Grab release version
         id: process_release_version

.github/workflows/nix-build.yml

@@ -118,6 +118,8 @@ jobs:
     needs: build-run-image
     if: ${{ success() }}
     uses: ./.github/workflows/testinfra-ami-build.yml
+    secrets:
+      DEV_AWS_ROLE: ${{ secrets.DEV_AWS_ROLE }}
 
   run-tests:
     needs: build-run-image

.github/workflows/testinfra-ami-build.yml

@@ -3,9 +3,13 @@ name: Testinfra Integration Tests Nix
 on:
   workflow_dispatch:
   workflow_call:
+    secrets:
+      DEV_AWS_ROLE:
+        description: 'AWS role for dev environment'
+        required: true
 
 permissions:
-  contents: read
+  contents: write
   id-token: write
 
 jobs:
@@ -17,7 +21,13 @@ jobs:
       - name: Checkout Repo
         uses: supabase/postgres/.github/actions/shared-checkout@HEAD
 
-      - uses: DeterminateSystems/nix-installer-action@main
+      - name: Install nix
+        uses: cachix/install-nix-action@v27
+        with:
+          install_url: https://releases.nixos.org/nix/nix-2.29.1/install
+          extra_nix_config: |
+            substituters = https://cache.nixos.org https://nix-postgres-artifacts.s3.amazonaws.com
+            trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=% cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
 
       - name: Set PostgreSQL versions
         id: set-versions
@@ -32,22 +42,44 @@ jobs:
       matrix:
         postgres_version: ${{ fromJson(needs.prepare.outputs.postgres_versions) }}
         include:
-          - runner: arm-runner
+          - runner: large-linux-arm
             arch: arm64
             ubuntu_release: noble
             ubuntu_version: 24.04
             mcpu: neoverse-n1
     runs-on: ${{ matrix.runner }}
     timeout-minutes: 150
-    permissions:
-      contents: write
-      packages: write
-      id-token: write
 
     steps:
       - name: Checkout Repo
         uses: supabase/postgres/.github/actions/shared-checkout@HEAD
 
+      - name: Debug AWS role secret
+        run: |
+          echo "Checking DEV_AWS_ROLE secret availability..."
+          if [ -z "${{ secrets.DEV_AWS_ROLE }}" ]; then
+            echo "❌ DEV_AWS_ROLE is empty or not available"
+          else
+            echo "✅ DEV_AWS_ROLE is available"
+          fi
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ secrets.DEV_AWS_ROLE }}
+          aws-region: "us-east-1"
+          output-credentials: true
+          role-duration-seconds: 7200
+
+      - name: Install nix
+        uses: cachix/install-nix-action@v27
+        with:
+          install_url: https://releases.nixos.org/nix/nix-2.29.1/install
+          extra_nix_config: |
+            substituters = https://cache.nixos.org https://nix-postgres-artifacts.s3.amazonaws.com
+            trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=% cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
+
+
       - id: args
         uses: mikefarah/yq@master
         with:
@@ -68,23 +100,23 @@ jobs:
 
       - name: Generate common-nix.vars.pkr.hcl
         run: |
-          PG_VERSION=$(sudo nix run nixpkgs#yq -- '.postgres_release["postgres'${{ matrix.postgres_version }}'"]' ansible/vars.yml)
+          PG_VERSION=$(nix run nixpkgs#yq -- '.postgres_release["postgres'${{ matrix.postgres_version }}'"]' ansible/vars.yml)
           PG_VERSION=$(echo "$PG_VERSION" | tr -d '"')  # Remove any surrounding quotes
           echo 'postgres-version = "'$PG_VERSION'"' > common-nix.vars.pkr.hcl
           # Ensure there's a newline at the end of the file
           echo "" >> common-nix.vars.pkr.hcl
 
       - name: Build AMI stage 1
         run: |
-          packer init amazon-arm64-nix.pkr.hcl
           GIT_SHA=${{github.sha}}
-          packer build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" -var "ansible_arguments=" -var "postgres-version=${{ steps.random.outputs.random_string }}" -var "region=ap-southeast-1" -var 'ami_regions=["ap-southeast-1"]' -var "force-deregister=true" -var "ansible_arguments=-e postgresql_major=${POSTGRES_MAJOR_VERSION}" amazon-arm64-nix.pkr.hcl
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- init amazon-arm64-nix.pkr.hcl
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl" -var "ansible_arguments=" -var "postgres-version=${{ steps.random.outputs.random_string }}" -var "region=ap-southeast-1" -var 'ami_regions=["ap-southeast-1"]' -var "force-deregister=true" -var "ansible_arguments=-e postgresql_major=${POSTGRES_MAJOR_VERSION}" amazon-arm64-nix.pkr.hcl
 
       - name: Build AMI stage 2
         run: |
-          packer init stage2-nix-psql.pkr.hcl
           GIT_SHA=${{github.sha}}
-          packer build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var "postgres_major_version=${POSTGRES_MAJOR_VERSION}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl"  -var "postgres-version=${{ steps.random.outputs.random_string }}" -var "region=ap-southeast-1" -var 'ami_regions=["ap-southeast-1"]' -var "force-deregister=true" -var "git_sha=${GITHUB_SHA}"  stage2-nix-psql.pkr.hcl
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- init stage2-nix-psql.pkr.hcl
+          nix run github:supabase/postgres/${GIT_SHA}#packer -- build -var "git-head-version=${GIT_SHA}" -var "packer-execution-id=${GITHUB_RUN_ID}" -var "postgres_major_version=${POSTGRES_MAJOR_VERSION}" -var-file="development-arm.vars.pkr.hcl" -var-file="common-nix.vars.pkr.hcl"  -var "postgres-version=${{ steps.random.outputs.random_string }}" -var "region=ap-southeast-1" -var 'ami_regions=["ap-southeast-1"]' -var "force-deregister=true" -var "git_sha=${GITHUB_SHA}"  stage2-nix-psql.pkr.hcl
 
       - name: Run tests
         timeout-minutes: 10

flake.nix

@@ -13,6 +13,7 @@
     treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
     git-hooks.url = "github:cachix/git-hooks.nix";
     git-hooks.inputs.nixpkgs.follows = "nixpkgs";
+    nixpkgs-go124.url = "github:Nixos/nixpkgs/d2ac4dfa61fba987a84a0a81555da57ae0b9a2b0";
   };
 
   outputs =

nix/checks.nix

@@ -294,6 +294,7 @@
             wal-g-2
             wal-g-3
             dbmate-tool
+            packer
             pg_regress
             ;
         }

nix/devShells.nix

@@ -45,9 +45,7 @@
               shellcheck
               ansible
               ansible-lint
-              (packer.overrideAttrs (_oldAttrs: {
-                version = "1.7.8";
-              }))
+              self'.packages.packer
 
               self'.packages.start-server
               self'.packages.start-client

nix/docs/updating-dependencies.md

@@ -0,0 +1,68 @@
+# Updating Dependencies
+
+This document explains how to update various dependencies used in the nix configuration.
+
+## Updating Packer
+
+Packer is used for creating machine images and is defined in `nix/packages/packer.nix`.
+
+### Steps to update Packer version:
+
+1. Create a branch off of `develop`
+2. Navigate to `nix/packages/packer.nix`
+3. Update the version field:
+   ```nix
+   version = "1.15.0"; # Update to desired version
+   ```
+4. Update the git revision to match the new version:
+   ```nix
+   rev = "v${version}";
+   ```
+5. Temporarily clear the hash to get the new SHA256:
+   ```nix
+   hash = ""; # Clear this temporarily
+   ```
+6. Save the file and run:
+   ```bash
+   nix build .#packer
+   ```
+7. Nix will fail and output the correct SHA256 hash. Copy this hash and update the file:
+   ```nix
+   hash = "sha256-NEWHASHHEREFROMBUILDOUTPUT";
+   ```
+8. Update the vendorHash if needed. If the build fails due to vendor hash mismatch, temporarily set:
+   ```nix
+   vendorHash = ""; # Clear this temporarily
+   ```
+9. Run `nix build .#packer` again to get the correct vendorHash, then update:
+   ```nix
+   vendorHash = "sha256-NEWVENDORHASHHEREFROMBUILDOUTPUT";
+   ```
+10. Verify the build works:
+    ```bash
+    nix build .#packer
+    ```
+11. Test the packer binary:
+    ```bash
+    ./result/bin/packer version
+    ```
+12. Run the full test suite to ensure nothing is broken:
+    ```bash
+    nix flake check -L
+    ```
+13. Commit your changes and create a PR for review
+14. Update any CI/CD workflows or documentation that reference the old Packer version
+
+### Notes:
+- Always check the [Packer changelog](https://github.com/hashicorp/packer/releases) for breaking changes
+- Packer uses Go, so ensure compatibility with the Go version specified in the flake inputs
+- The current Go version is specified in `flake.nix` under `nixpkgs-go124` input
+- If updating to a major version, test all packer templates (`.pkr.hcl` files) in the repository
+
+## Updating Other Dependencies
+
+Similar patterns can be followed for other dependencies defined in the nix packages. Always:
+1. Check for breaking changes in changelogs
+2. Update version numbers and hashes
+3. Run local tests
+4. Verify functionality before creating PR

nix/packages/default.nix

@@ -1,4 +1,4 @@
-{ self, ... }:
+{ self, inputs, ... }:
 {
   imports = [ ./postgres.nix ];
   perSystem =
@@ -37,6 +37,7 @@
           supabase-groonga = pkgs.callPackage ./groonga { };
           local-infra-bootstrap = pkgs.callPackage ./local-infra-bootstrap.nix { };
           migrate-tool = pkgs.callPackage ./migrate-tool.nix { psql_15 = self'.packages."psql_15/bin"; };
+          packer = pkgs.callPackage ./packer.nix { inherit inputs; };
           pg-restore = pkgs.callPackage ./pg-restore.nix { psql_15 = self'.packages."psql_15/bin"; };
           pg_prove = pkgs.perlPackages.TAPParserSourceHandlerpgTAP;
           pg_regress = makePgRegress activeVersion;