cloud-init-dev team mailing list archive

[Ryan Harper <ryan.harper@xxxxxxxxxxxxx>]

Ryan Harper has proposed merging ~raharper/cloud-init:systemd_export_tz into cloud-init:master.

Requested reviews:
  cloud init development team (cloud-init-dev)

For more details, see:
https://code.launchpad.net/~raharper/cloud-init/+git/cloud-init/+merge/307722

Export TZ environment variable to systemd units

When TZ is unset in the execution environment for cloud-init, glibc
behavior of strftime will check if /etc/localtime is available via
a stat syscall.  During a normal cloud-init boot, we execute roughly
400+ stat calls to /etc/localtime.  Exporting TZ into the environment
prevents these stats syscalls.

-- 
Your team cloud init development team is requested to review the proposed merge of ~raharper/cloud-init:systemd_export_tz into cloud-init:master.

diff --git a/systemd/cloud-config.service b/systemd/cloud-config.service
index 3309e08..411b2b0 100644
--- a/systemd/cloud-config.service
+++ b/systemd/cloud-config.service
@@ -5,6 +5,7 @@ Wants=network-online.target cloud-config.target
 
 [Service]
 Type=oneshot
+Environment=TZ=:/etc/localtime
 ExecStart=/usr/bin/cloud-init modules --mode=config
 RemainAfterExit=yes
 TimeoutSec=0
diff --git a/systemd/cloud-final.service b/systemd/cloud-final.service
index b8f69b7..b740dac 100644
--- a/systemd/cloud-final.service
+++ b/systemd/cloud-final.service
@@ -5,6 +5,7 @@ Wants=network-online.target cloud-config.service
 
 [Service]
 Type=oneshot
+Environment=TZ=:/etc/localtime
 ExecStart=/usr/bin/cloud-init modules --mode=final
 RemainAfterExit=yes
 TimeoutSec=0
diff --git a/systemd/cloud-init-local.service b/systemd/cloud-init-local.service
index 55834ba..1459703 100644
--- a/systemd/cloud-init-local.service
+++ b/systemd/cloud-init-local.service
@@ -12,6 +12,7 @@ Conflicts=shutdown.target
 
 [Service]
 Type=oneshot
+Environment=TZ=:/etc/localtime
 ExecStart=/usr/bin/cloud-init init --local
 ExecStart=/bin/touch /run/cloud-init/network-config-ready
 RemainAfterExit=yes
diff --git a/systemd/cloud-init.service b/systemd/cloud-init.service
index bbddb2d..1b12b04 100644
--- a/systemd/cloud-init.service
+++ b/systemd/cloud-init.service
@@ -18,6 +18,7 @@ Conflicts=shutdown.target
 
 [Service]
 Type=oneshot
+Environment=TZ=:/etc/localtime
 ExecStart=/usr/bin/cloud-init init
 RemainAfterExit=yes
 TimeoutSec=0