From dc938539464378cd03fc19ce0f8cf206b5bce888 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Lecrenier?= <loic@meilisearch.com>
Date: Thu, 6 Oct 2022 10:13:50 +0200
Subject: [PATCH] Use Ubuntu 18.04 for all CI tasks that previously used Ubuntu
 20.04

This is to prevent linking with a version of glibc that is too recent.

With meilisearch v0.29.0 we inadvertently bumped the minimum supported
glibc version to 2.29, which means it couldn't be run from Debian 10
(for example) anymore. By using Ubuntu 18.04, which uses glibc 2.27, we
restore support for older Linux distros.
---
 .github/workflows/coverage.yml                  | 2 +-
 .github/workflows/flaky.yml                     | 2 +-
 .github/workflows/publish-binaries.yml          | 6 +++---
 .github/workflows/publish-deb-brew-pkg.yml      | 4 ++--
 .github/workflows/rust.yml                      | 8 ++++----
 .github/workflows/update-cargo-toml-version.yml | 2 +-
 bors.toml                                       | 2 +-
 7 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index acef34200..3a10a611f 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -6,7 +6,7 @@ name: Execute code coverage
 
 jobs:
   nightly-coverage:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/flaky.yml b/.github/workflows/flaky.yml
index 3ba11fe77..8d34da4d9 100644
--- a/.github/workflows/flaky.yml
+++ b/.github/workflows/flaky.yml
@@ -5,7 +5,7 @@ on:
 
 jobs:
   flaky:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
 
     steps:
     - uses: actions/checkout@v3
diff --git a/.github/workflows/publish-binaries.yml b/.github/workflows/publish-binaries.yml
index 95088b1ef..d07809df8 100644
--- a/.github/workflows/publish-binaries.yml
+++ b/.github/workflows/publish-binaries.yml
@@ -38,9 +38,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, macos-latest, windows-latest]
+        os: [ubuntu-18.04, macos-latest, windows-latest]
         include:
-          - os: ubuntu-20.04
+          - os: ubuntu-18.04
             artifact_name: meilisearch
             asset_name: meilisearch-linux-amd64
           - os: macos-latest
@@ -77,7 +77,7 @@ jobs:
       matrix:
         include:
           - build: aarch64
-            os: ubuntu-20.04
+            os: ubuntu-18.04
             target: aarch64-unknown-linux-gnu
             linker: gcc-aarch64-linux-gnu
             use-cross: true
diff --git a/.github/workflows/publish-deb-brew-pkg.yml b/.github/workflows/publish-deb-brew-pkg.yml
index a135ddafb..028001dcd 100644
--- a/.github/workflows/publish-deb-brew-pkg.yml
+++ b/.github/workflows/publish-deb-brew-pkg.yml
@@ -15,7 +15,7 @@ jobs:
 
   debian:
     name: Publish debian packagge
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     needs: check-version
     steps:
     - uses: hecrj/setup-rust-action@master
@@ -38,7 +38,7 @@ jobs:
 
   homebrew:
     name: Bump Homebrew formula
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     needs: check-version
     steps:
       - name: Create PR to Homebrew
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 0e92fc706..266e306d6 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, macos-latest, windows-latest]
+        os: [ubuntu-18.04, macos-latest, windows-latest]
     steps:
     - uses: actions/checkout@v3
     - name: Cache dependencies
@@ -40,7 +40,7 @@ jobs:
   # We run tests in debug also, to make sure that the debug_assertions are hit
   test-debug:
     name: Run tests in debug
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
@@ -58,7 +58,7 @@ jobs:
 
   clippy:
     name: Run Clippy
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
@@ -77,7 +77,7 @@ jobs:
 
   fmt:
     name: Run Rustfmt
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/update-cargo-toml-version.yml b/.github/workflows/update-cargo-toml-version.yml
index 968b5f050..faf3b0aaa 100644
--- a/.github/workflows/update-cargo-toml-version.yml
+++ b/.github/workflows/update-cargo-toml-version.yml
@@ -16,7 +16,7 @@ jobs:
 
   update-version-cargo-toml:
     name: Update version in Cargo.toml files
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
diff --git a/bors.toml b/bors.toml
index a29054dfb..b357e8d61 100644
--- a/bors.toml
+++ b/bors.toml
@@ -1,5 +1,5 @@
 status = [
-    'Tests on ubuntu-20.04',
+    'Tests on ubuntu-18.04',
     'Tests on macos-latest',
     'Tests on windows-latest',
     'Run Clippy',