chezmoi parses attribute prefixes left-to-right and 'encrypted_' must
precede 'private_'. The 'private_encrypted_' order silently breaks
decryption: chezmoi consumes 'private_', then treats 'encrypted_foo.age'
as a literal filename and copies the ciphertext verbatim instead of
decrypting it.
models.yml was named 'private_encrypted_models.yml.age' since commit
3c3fab7 and was never decrypting — a stale 'encrypted_models.yml.age'
blob was sitting in ~/.omp/agent/ and the plaintext models.yml was an
unmanaged leftover. .env and zai.key used the plain 'encrypted_'
prefix and were decrypting at umask 0644 (world-readable in isolation;
the 700 ~/.omp/agent/ dir was the only thing shielding them).
This commit:
* renames all three to encrypted_private_{zai.key,.env,models.yml}.age
so chezmoi decrypts AND lands them at 0600 natively
* rewrites run_onchange_35 as 'ensure-omp-secret-perms.sh' covering
all three, as belt-and-suspenders for any box where a secret still
sits at 0644 from a prior apply
* removes the stale encrypted_models.yml.age verbatim blob and its
orphan state entry
* corrects the README perms section to document the prefix-order
gotcha (was misleadingly claiming 'private_' alone gave 0600)
Verified end-to-end on this box: chezmoi managed lists all three as
decrypted targets, scoped apply writes them at 600, chmod script is
idempotent. Other boxes need a 'chezmoi apply' to pick up the rename
and the onchange chmod.
Tadbit is the 7th machine in the homelab. Generated a per-machine
age key on tadbit, added the pubkey as 8th recipient in
.chezmoi.yaml.tmpl, and re-encrypted the two .age secrets with
all 8 recipients (1 recovery + 7 machines).
bit-cachyos is the 6th machine in the hive. Generated a per-machine
age key on bit, added the pubkey to the recipients list in
.chezmoi.yaml.tmpl, and re-encrypted the two .age secrets
(dot_omp/agent/encrypted_.env.age and encrypted_zai.key.age) with all
7 recipients (1 recovery + 6 machines).
Bit's existing partial setup (pre-existing chezmoi source dir, omp
native binary at ~/.local/bin/omp) is backed up during the bootstrap
script to ~/.local/share/chezmoi.bak.<timestamp>.
See onboard-bit.sh on bit:/tmp/onboard-bit.sh for the no-sudo
bootstrap flow.
The previous approach (private_dot_omp/agent/zai.key.age + manual
re-encryption) didn't work because:
1. The 'private_' prefix is for files NOT to push to remote, not for
encrypted files. The 'encrypted_' prefix is what chezmoi recognizes
as an encryption marker.
2. The encrypted file needs to be at dot_<path>/encrypted_<name>.age
so chezmoi can both decrypt on apply AND strip the .age suffix
to write the destination file as <name> (without .age).
Also fix chezmoi age config to actually decrypt non-interactively:
- Add useBuiltinAge: false to force external age binary
- Add age.command: /usr/bin/age (absolute path) so PATH issues
don't matter in non-interactive SSH contexts
The encrypted file is at dot_omp/agent/encrypted_zai.key.age, decrypts
to ~/.omp/agent/zai.key on apply. Encrypted to all 6 recipients
(recovery + miche + byte + kaiser + rye + crouton).
Tested on miche:
- chezmoi apply: rc=0
- live zai.key: 50 bytes (correct content)
- decrypts with miche per-machine key
- would decrypt on other boxes with their respective keys
