Zhao Chao 8057b2d926 More reliable gpg keys importing in DIB elements ... We're still seeing apt-key failed to import gpg keys these days during the images building in the gate jobs, the problem is keys.gnupg.net and keyserver.ubuntu.com are both not stable according to [1] and [2], it's better to adopt pool.sks-keyservers.net instead and with simple retries. To reduce code duplication, this common apt-key importing function is also moved to ubuntu-guest as an environment snippet. [1] https://www.gnupg.org/faq/gnupg-faq.html#new_user_default_keyserver [2] https://sks-keyservers.net/overview-of-pools.php Closes-Bug: #1579094 Change-Id: I0fe200d140f6f9c4d423dd498797a225e3295a71 Signed-off-by: Zhao Chao <zhaochao1984@gmail.com>		2018-07-16 12:03:16 +08:00
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install.d	allow unauthenticated packages to be installed	2016-12-20 06:48:53 -05:00
pre-install.d	More reliable gpg keys importing in DIB elements	2018-07-16 12:03:16 +08:00