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[v2,2/2] image-account-extension.bbclass: Export SOURCE_DATE_EPOCH variable

Message ID 20240306061423.1088541-3-Adithya.Balakumar@toshiba-tsip.com
State Accepted, archived
Headers show
Series Fix reproducibility of /etc/shadow file when image built on different days | expand

Commit Message

Adithya Balakumar March 6, 2024, 6:14 a.m. UTC 
When a user account is created / updated, the third field (sp_lstchg)
in the /etc/shadow file could be modified. The third field contains
the date of the last password change expressed as the number of days
since Jan 1,1970. When the images are built on different days, the
value of sp_lstchg will be different making the image not reproducible.

Adding the SOURCE_DATE_EPOCH variable to environment ensures that
sp_lstchg value is set with respect to the SOURCE_DATE_EPOCH value.

Signed-off-by: Adithya Balakumar <Adithya.Balakumar@toshiba-tsip.com>
---
 meta/classes/image-account-extension.bbclass | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/meta/classes/image-account-extension.bbclass b/meta/classes/image-account-extension.bbclass
index 9e67cb91..3d4e1d1d 100644
--- a/meta/classes/image-account-extension.bbclass
+++ b/meta/classes/image-account-extension.bbclass
@@ -131,6 +131,10 @@  def image_create_users(d: "DataSmart") -> None:
 
 ROOTFS_POSTPROCESS_COMMAND += "image_postprocess_accounts"
 python image_postprocess_accounts() {
+    import os
+    if d.getVar("SOURCE_DATE_EPOCH") != None:
+        os.environ["SOURCE_DATE_EPOCH"] = d.getVar("SOURCE_DATE_EPOCH")
+ 
     image_create_groups(d)
     image_create_users(d)
 }