[airflow-ci-infra] 01/01: Added liberal TCP kernel configuration

[po...@apache.org]

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potiuk pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/airflow-ci-infra.git

commit c2de1b6ab87bf7df0d9af26516fb8ac73a763c71
Author: Jarek Potiuk <ja...@potiuk.com>
AuthorDate: Fri Oct 7 19:21:37 2022 -0500

    Added liberal TCP kernel configuration
    
    This is needed to  avoid "connection reset by peer" when k8s cluster
    is under heavy load (see
    https://technology.lastminute.com/chasing-k8s-connection-reset-issue/)
---
 .../files/{increase_inotify_resources.sh => configure_kernel.sh}      | 1 +
 github-runner-ami/packer/ubuntu2004.pkr.hcl                           | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/github-runner-ami/packer/files/increase_inotify_resources.sh b/github-runner-ami/packer/files/configure_kernel.sh
similarity index 95%
rename from github-runner-ami/packer/files/increase_inotify_resources.sh
rename to github-runner-ami/packer/files/configure_kernel.sh
index ae97a8b..5fb2855 100644
--- a/github-runner-ami/packer/files/increase_inotify_resources.sh
+++ b/github-runner-ami/packer/files/configure_kernel.sh
@@ -18,4 +18,5 @@
 cat >>/etc/sysctl.conf <<EOF
 fs.inotify.max_user_watches = 524288
 fs.inotify.max_user_instances = 512
+net.netfilter.nf_conntrack_tcp_be_liberal = 1
 EOF
diff --git a/github-runner-ami/packer/ubuntu2004.pkr.hcl b/github-runner-ami/packer/ubuntu2004.pkr.hcl
index 10cd115..f92625a 100644
--- a/github-runner-ami/packer/ubuntu2004.pkr.hcl
+++ b/github-runner-ami/packer/ubuntu2004.pkr.hcl
@@ -38,7 +38,7 @@ source "amazon-ebs" "runner_builder" {
   #access_key = ""
   #secret_key = ""
   region = var.aws_regions[0]
-  ami_name = "${var.ami_name}-${var.runner_version}-v13"
+  ami_name = "${var.ami_name}-${var.runner_version}-v14"
   ami_regions = var.aws_regions
   tag {
     key   = "Name"
@@ -146,7 +146,7 @@ build {
       "./files/install-nodejs.sh",
       "./files/install-github-cli.sh",
       "./files/docker-compose.sh",
-      "./files/increase_inotify_resources.sh",
+      "./files/configure_kernel.sh",
       "./files/git.sh",
       "./files/runner_bootstrap.sh",
       "./files/create-hostedtools-cache.sh",