From bc1ba942c028f38c5b3b0ec699d46295c60bf9fe Mon Sep 17 00:00:00 2001
From: ENIX NOC <noc@enix.fr>
Date: Sat, 11 Mar 2023 18:27:41 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=A7=20Retry=20'terraform=20apply'=203?=
 =?UTF-8?q?=20times=20if=20it=20fails?=
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Some platforms (looking at you OpenStack) can exhibit random
transient failures. This helps to work around them.
---
 prepare-vms/lib/infra/terraform.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/prepare-vms/lib/infra/terraform.sh b/prepare-vms/lib/infra/terraform.sh
index 7ccbe904..93cc8667 100644
--- a/prepare-vms/lib/infra/terraform.sh
+++ b/prepare-vms/lib/infra/terraform.sh
@@ -34,8 +34,15 @@ infra_start() {
                 fi
                 echo prefix = \"$TAG\" >> terraform.tfvars
                 echo how_many_nodes = \"$COUNT\" >> terraform.tfvars
-                terraform apply -auto-approve
-                terraform output -raw ip_addresses > ips.txt
+                for RETRY in 1 2 3; do
+			if terraform apply -auto-approve; then
+				terraform output -raw ip_addresses > ips.txt
+				break
+			fi
+		done
+		if ! [ -f ips.txt ]; then
+			die "Terraform failed."
+		fi
         )
 }