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cli: add ssh command to securely connect with nodes over ssh #3568

Merged
merged 38 commits into from
Jan 30, 2025
Merged

cli: add ssh command to securely connect with nodes over ssh #3568

merged 38 commits into from
Jan 30, 2025

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miampf
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@miampf miampf commented Jan 7, 2025 •
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Context

RFC 16 requires key derivation for the client and all nodes. This PR aims to implement that. For the main PR of this RFC, see #3557 (WIP).

Proposed change(s)

  • Add grpc functionality to request a CA key from the join service
    • This CA key is derived in the key service
    • The join client in the bootstrapper than gets the derived key in the IssueJoinTicketResponse

Additional info

  • The RFC specifies that the CA key should be derived directly from the master secret. This is not the case here. Instead, the key service requests a key from a KMS which in turn is used to derive the CA key. If the cKMS is used, the key sent by the KMS is derived using the master secret.

Checklist

@miampf miampf added the feature This introduces new functionality label Jan 7, 2025
@miampf miampf added this to the v2.21.0 milestone Jan 7, 2025
@miampf miampf requested a review from burgerdev January 7, 2025 16:08
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miampf commented Jan 7, 2025

Used the feature label instead of no changelog since this PR adds the constellation ssh subcommand for key derivation.

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netlify bot commented Jan 7, 2025 •
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🔨 Latest commit 7dbcc70
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burgerdev
burgerdev reviewed Jan 8, 2025
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@miampf miampf force-pushed the miampf/key-derivation branch 4 times, most recently from 0bd9ac7 to ced42d5 Compare January 9, 2025 11:53
@miampf miampf requested a review from burgerdev January 9, 2025 14:54
@miampf miampf force-pushed the miampf/key-derivation branch 8 times, most recently from 932d7c5 to 215eae3 Compare January 14, 2025 15:41
burgerdev
burgerdev reviewed Jan 16, 2025
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@miampf miampf force-pushed the miampf/key-derivation branch 2 times, most recently from 981ebac to 10e9a73 Compare January 16, 2025 12:26
@miampf miampf requested a review from burgerdev January 16, 2025 12:27
@miampf miampf marked this pull request as ready for review January 16, 2025 12:27
@miampf miampf force-pushed the miampf/key-derivation branch from 10e9a73 to 6eb0158 Compare January 16, 2025 14:03
daniel-weisse
daniel-weisse requested changes Jan 16, 2025
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Overall structure looks good to me.
Mostly notes on style and naming

@miampf miampf force-pushed the miampf/key-derivation branch from 6c935da to 57da20b Compare January 16, 2025 15:20
miampf added 26 commits January 30, 2025 12:21
@miampf
adjusted key derivation logic to happen in the join client
23b23d8
@miampf
regenerated protobuf definitions
570b735
@miampf
fixed tests
5053c45
@miampf
make key path a constant
6ec18eb
@miampf
also derive the key on the control plane nodes
d336d06
@miampf
refactoring
241d0cd
@miampf
please CI
0be301f
@miampf
added test for CA generation + use SeedSize constant
bee3f6c 
Previously, I just hard coded 256 as the key length that seeds the key
generation since it worked. Now, it uses ed25519.SeedSize (32) instead.
@miampf
wrote test for ssh subcommand
b5fddcd
@miampf
check return value of fh.Write in ssh_test.go
ea94ebd
@miampf
implemented suggestions
19181af
@miampf
move key derivation to joinservice instead of joinclient
f386dbc
@miampf
implement small changes
21c9cd6
@miampf
use cobra.Command
8577d23
@miampf
generate
f53e32d
@miampf
fix rebase issues
07a3309
@miampf
remove dot
f8f2490
@miampf
regenerate docs
cfa6ffc
@miampf
fix lock file
53c85c3
@miampf
fix joinservice unit test
3559fee
@miampf
gazelle generate
0e1e496
@miampf
fix other issues caused by variable renaming
3dfa405
@miampf
drop changes to tf lock completely
7fdd48f
@miampf
add license header to ssh_test.go
0cb3641
@miampf
generateKey -> writeCertificateForKey
70bc456
@miampf
regenerate protobuf files
7dbcc70
@miampf miampf force-pushed the miampf/key-derivation branch from 8f3a626 to 7dbcc70 Compare January 30, 2025 11:22
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Coverage report

Package Old New Trend
bootstrapper/internal/initserver 71.70% 67.90% ↘️
bootstrapper/internal/joinclient 87.00% 86.50% ↘️
cli/cmd 0.00% 0.00% 🚧
cli/internal/cmd 57.90% 58.10% ↗️
internal/constants 0.00% 0.00% 🚧
internal/crypto 69.60% 73.30% ↗️
joinservice/internal/server 78.20% 78.20% ↔️
joinservice/joinproto 0.00% 0.00% 🚧

@miampf miampf merged commit 706d1df into main Jan 30, 2025
11 checks passed
@miampf miampf deleted the miampf/key-derivation branch January 30, 2025 12:09
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@burgerdev burgerdev burgerdev approved these changes

@daniel-weisse daniel-weisse daniel-weisse approved these changes

@3u13r 3u13r Awaiting requested review from 3u13r 3u13r is a code owner

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3 participants
@miampf @daniel-weisse @burgerdev