nebula-cert: support reading CA passphrase from env (#1421)

* nebula-cert: support reading CA passphrase from env

This patch extends the `nebula-cert` command to support reading
the CA passphrase from the environment variable `CA_PASSPHRASE`.

Currently `nebula-cert` depends in an interactive session to obtain
the CA passphrase. This presents a challenge for automation tools like
ansible. With this change, ansible can store the CA passphrase in a
vault and supply it to `nebula-cert` via the `CA_PASSPHRASE`
environment variable for non-interactive signing.

Signed-off-by: Hal Martin <1230969+halmartin@users.noreply.github.com>

* name the variable NEBULA_CA_PASSPHRASE

---------

Signed-off-by: Hal Martin <1230969+halmartin@users.noreply.github.com>
Co-authored-by: JackDoan <me@jackdoan.com>
This commit is contained in:
Hal Martin
2025-11-17 21:41:08 +01:00
committed by GitHub
parent 36c890eaad
commit 4df8bcb1f5
4 changed files with 69 additions and 33 deletions

View File

@@ -171,6 +171,17 @@ func Test_ca(t *testing.T) {
assert.Equal(t, pwPromptOb, ob.String())
assert.Empty(t, eb.String())
// test encrypted key with passphrase environment variable
os.Remove(keyF.Name())
os.Remove(crtF.Name())
ob.Reset()
eb.Reset()
args = []string{"-version", "1", "-encrypt", "-name", "test", "-duration", "100m", "-groups", "1,2,3,4,5", "-out-crt", crtF.Name(), "-out-key", keyF.Name()}
os.Setenv("NEBULA_CA_PASSPHRASE", string(passphrase))
require.NoError(t, ca(args, ob, eb, testpw))
assert.Empty(t, eb.String())
os.Setenv("NEBULA_CA_PASSPHRASE", "")
// read encrypted key file and verify default params
rb, _ = os.ReadFile(keyF.Name())
k, _ := pem.Decode(rb)