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https://issues.apache.org/jira/browse/CASSANDRA-19110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17833152#comment-17833152
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Brandon Williams commented on CASSANDRA-19110:
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bq. SecureApt is also referring to /usr/share/keyrings, while also stating
that "For other archives, there is not yet a standard location where you can
find the key for a given apt repository".
I don't think that statement is regarding local storage, since the very next
sentence begins: "There's a rough standard of putting the key up on the web
page"
That page seems fairly old but I think the interesting part is where it says
"This was fixed by the introduction of the debian-archive-keyring package,
which manages apt keyring updates" which to me says that /etc/apt/keyring is
the intended place, but due to the creation of a new key in 2006, the
debian-archive-keyring package was added, and this is the genesis of
/usr/share/keyrings.
This leads me to think /usr/share/keyrings is intended to be used by packages
while /etc/apt/keyrings is for manually supplied keys. Indeed, all the *keyring
packages of GnuPG keys install in to /usr/share/keyrings. I also think it
would be weird to backup a directory in /usr/share while backing up all of /etc
would be routine, but backing up the key isn't strictly necessary, either.
> apt-key deprecation, replace with gpg --dearmor in the docs.
> ------------------------------------------------------------
>
> Key: CASSANDRA-19110
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19110
> Project: Cassandra
> Issue Type: Improvement
> Components: Documentation/Website
> Reporter: Simon K
> Assignee: Simon K
> Priority: Normal
> Fix For: 3.0.x, 3.11.x, 4.0.x, 4.1.x, 5.0.x, 5.x
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> the command `apt-key` is deprecated and soon to be removed, especially on
> Ubuntu.
> the directory `/usr/share/keyrings` for shared keys are also being removed.
> I suggest to convert the docs from
> {code:java}
> curl https://downloads.apache.org/cassandra/KEYS | sudo apt-key add - {code}
> to a simpler command:
> {code:java}
> curl https://downloads.apache.org/cassandra/KEYS | sudo gpg --dearmor -o
> /etc/apt/keyrings/cassandra-archive-keyring.gpg {code}
> The path `/etc/apt/keyrings` doesn't exists by default on Ubuntu 20.04 but it
> does on 22.04.
> I also suggest to add the source.list.d text from
> {code:java}
> $ echo "deb https://debian.cassandra.apache.org 42x main" | sudo tee -a
> /etc/apt/sources.list.d/cassandra.sources.list
> deb https://debian.cassandra.apache.org 42x main{code}
> to
> {code:java}
> $ echo "deb [signed-by=/etc/apt/keyrings/cassandra-archive-keyring.gpg]
> https://debian.cassandra.apache.org 42x main" | sudo tee -a
> /etc/apt/sources.list.d/cassandra.sources.list
> deb [signed-by=/etc/apt/keyrings/cassandra-archive-keyring.gpg]
> https://debian.cassandra.apache.org 42x main {code}
> I have made a [PR|https://github.com/apache/cassandra/pull/2936]
> I have tested the gpg --dearmor on a VM with Ubuntu 22.04 myself recently and
> it works just fine.
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