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distributed builds: load remote builder host key from the machines file

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This is already used by Hydra, and is very useful when materializing
a remote builder list from service discovery. This allows the service
discovery tool to only sync one file instead of two.
This commit is contained in:
Graham Christensen 2021-02-24 20:52:22 -05:00
parent 199081ad00
commit 1130b28824
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GPG key ID: FE918C3A98C1030F
6 changed files with 33 additions and 6 deletions
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2
src/libstore/legacy-ssh-store.cc
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@ -15,6 +15,7 @@ struct LegacySSHStoreConfig : virtual StoreConfig
using StoreConfig::StoreConfig;
const Setting<int> maxConnections{(StoreConfig*) this, 1, "max-connections", "maximum number of concurrent SSH connections"};
const Setting<Path> sshKey{(StoreConfig*) this, "", "ssh-key", "path to an SSH private key"};
const Setting<std::string> sshPublicHostKey{(StoreConfig*) this, "", "base64-ssh-public-host-key", "The public half of the host's SSH key"};
const Setting<bool> compress{(StoreConfig*) this, false, "compress", "whether to compress the connection"};
const Setting<Path> remoteProgram{(StoreConfig*) this, "nix-store", "remote-program", "path to the nix-store executable on the remote system"};
const Setting<std::string> remoteStore{(StoreConfig*) this, "", "remote-store", "URI of the store on the remote system"};
@ -59,6 +60,7 @@ struct LegacySSHStore : public virtual LegacySSHStoreConfig, public virtual Stor
, master(
host,
sshKey,
sshPublicHostKey,
// Use SSH master only if using more than 1 connection.
connections->capacity() > 1,
compress,