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nixos/mysql: enable sandbox mode #87833

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merged 3 commits into from Jun 16, 2020
Merged

nixos/mysql: enable sandbox mode #87833

merged 3 commits into from Jun 16, 2020

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Izorkin
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@Izorkin Izorkin commented May 14, 2020

Motivation for this change

Running mysql service in sandbox mode.
When the service startup, forced changed permissions to MySQL database folder.

cc @aanderse @flokli

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

@Izorkin Izorkin changed the title Sandbox mysql nixos/mysql: enable sandbox mode May 14, 2020
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Izorkin commented May 14, 2020

@GrahamcOfBorg test mariadb-galera-mariabackup
@GrahamcOfBorg test mariadb-galera-rsync
@GrahamcOfBorg test mysql
@GrahamcOfBorg test mysql-autobackup
@GrahamcOfBorg test mysql-backup
@GrahamcOfBorg test mysql-replication

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Izorkin commented Jun 5, 2020

cc @aanderse @flokli @Mic92

Mic92
Mic92 approved these changes Jun 5, 2020
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Looks safe to me. I retired my mysql database though. Maybe someone else could test this?

aanderse
aanderse requested changes Jun 5, 2020
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In a separate PR we should eliminate the need to run anything as root. I can do that.

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@Izorkin Izorkin requested a review from aanderse June 8, 2020 14:51
aanderse
aanderse requested changes Jun 10, 2020
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Just a couple minor requests, if you don't mind, and then we should merge this ASAP. Thanks for your never ending hard work @Izorkin!

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aanderse
aanderse approved these changes Jun 10, 2020
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Thanks for all the discussion. I was happy to learn a few things. @Mic92 I'll leave final approval and merging to you.

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It also occurred to me that while we are doing a good job with release notes maybe we should write a section in the NixOS manual about systemd hardening in general. I have had to explain to a coworker why some of their code stopped working when they upgraded to Debian 9 - it was because of some systemd hardening that never used to exist. For people new(er) to systemd it can be fairly frustrating and confusing initially.

@Mic92 Mic92 merged commit a9a5016 into NixOS:master Jun 16, 2020
@Izorkin Izorkin deleted the sandbox-mysql branch June 16, 2020 17:37
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Izorkin commented Jun 16, 2020

Thanks!

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@Mic92 Mic92 Mic92 approved these changes

@aanderse aanderse aanderse approved these changes

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6.topic: nixos 8.has: changelog 8.has: documentation 8.has: module (update) 10.rebuild-darwin: 0 10.rebuild-linux: 1-10 10.rebuild-linux: 1
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