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Add option --ssh-store-settings #358

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Merged
phaer merged 2 commits into from
Feb 24, 2025
Merged

Add option --ssh-store-settings #358

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f872740
refactor: encode ssh store URL
aabccd021 Oct 19, 2024
6cd5f73
feat: add option --ssh-store-settings
aabccd021 Oct 19, 2024
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2 changes: 2 additions & 0 deletions docs/cli.md
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@ Options:
use another kexec tarball to bootstrap NixOS
* --kexec-extra-flags
extra flags to add into the call to kexec, e.g. "--no-sync"
* --ssh-store-setting <key> <value>
ssh store settings appended to the store URI, e.g. "compress true". <value> needs to be URI encoded.
* --post-kexec-ssh-port <ssh_port>
after kexec is executed, use a custom ssh port to connect. Defaults to 22
* --copy-host-keys
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23 changes: 17 additions & 6 deletions src/nixos-anywhere.sh
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Expand Up @@ -6,6 +6,7 @@ flake=""
flakeAttr=""
kexecUrl=""
kexecExtraFlags=""
sshStoreSettings=""
enableDebug=""
nixBuildFlags=()
diskoScript=""
Expand Down Expand Up @@ -94,6 +95,8 @@ Options:
use another kexec tarball to bootstrap NixOS
* --kexec-extra-flags
extra flags to add into the call to kexec, e.g. "--no-sync"
* --ssh-store-setting <key> <value>
ssh store settings appended to the store URI, e.g. "compress true". <value> needs to be URI encoded.
* --post-kexec-ssh-port <ssh_port>
after kexec is executed, use a custom ssh port to connect. Defaults to 22
* --copy-host-keys
Expand Down Expand Up @@ -213,6 +216,14 @@ parseArgs() {
kexecExtraFlags=$2
shift
;;
--ssh-store-setting)
key=$2
shift
value=$2
shift
sshStoreSettings+="$sshStoreSettings$key=$value&"
shift
;;
--post-kexec-ssh-port)
postKexecSshPort=$2
shift
Expand Down Expand Up @@ -628,17 +639,17 @@ runDisko() {
runSsh "umask 077; mkdir -p \"$(dirname "$path")\"; cat > $path" <"${diskEncryptionKeys[$path]}"
done
if [[ -n ${diskoScript} ]]; then
nixCopy --to "ssh://$sshConnection" "$diskoScript"
nixCopy --to "ssh://$sshConnection?$sshStoreSettings" "$diskoScript"
elif [[ ${buildOn} == "remote" ]]; then
step Building disko script
# We need to do a nix copy first because nix build doesn't have --no-check-sigs
# Use ssh:// here to avoid https://github.com/NixOS/nix/issues/7359
nixCopy --to "ssh://$sshConnection" "${flake}#${flakeAttr}.system.build.${diskoMode}Script" \
nixCopy --to "ssh://$sshConnection?$sshStoreSettings" "${flake}#${flakeAttr}.system.build.${diskoMode}Script" \
--derivation --no-check-sigs
# If we don't use ssh-ng here, we get `error: operation 'getFSAccessor' is not supported by store`
diskoScript=$(
nixBuild "${flake}#${flakeAttr}.system.build.${diskoMode}Script" \
--eval-store auto --store "ssh-ng://$sshConnection?ssh-key=$sshKeyDir/nixos-anywhere"
--eval-store auto --store "ssh-ng://$sshConnection?ssh-key=$sshKeyDir%2Fnixos-anywhere&$sshStoreSettings"
)
fi

Expand All @@ -650,17 +661,17 @@ nixosInstall() {
local nixosSystem=$1
if [[ -n ${nixosSystem} ]]; then
step Uploading the system closure
nixCopy --to "ssh://$sshConnection?remote-store=local?root=/mnt" "$nixosSystem"
nixCopy --to "ssh://$sshConnection?remote-store=local%3Froot=%2Fmnt&$sshStoreSettings" "$nixosSystem"
elif [[ ${buildOn} == "remote" ]]; then
step Building the system closure
# We need to do a nix copy first because nix build doesn't have --no-check-sigs
# Use ssh:// here to avoid https://github.com/NixOS/nix/issues/7359
nixCopy --to "ssh://$sshConnection?remote-store=local?root=/mnt" "${flake}#${flakeAttr}.system.build.toplevel" \
nixCopy --to "ssh://$sshConnection?remote-store=local%3Froot=%2Fmnt&$sshStoreSettings" "${flake}#${flakeAttr}.system.build.toplevel" \
--derivation --no-check-sigs
# If we don't use ssh-ng here, we get `error: operation 'getFSAccessor' is not supported by store`
nixosSystem=$(
nixBuild "${flake}#${flakeAttr}.system.build.toplevel" \
--eval-store auto --store "ssh-ng://$sshConnection?ssh-key=$sshKeyDir/nixos-anywhere&remote-store=local?root=/mnt"
--eval-store auto --store "ssh-ng://$sshConnection?ssh-key=$sshKeyDir%2Fnixos-anywhere&remote-store=local%3Froot=%2Fmnt&$sshStoreSettings"
)
fi

Expand Down