Add hook callback before privkey loading, e.g. "preload_cert" #358

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adam · 2025-12-29T01:23:39+01:00

adam commented

2025-12-29 01:23:39 +01:00

Originally created by @nyurik on GitHub (Jun 27, 2018).

In some cases, an external storage is used to keep the keys between runs, e.g. a HashiCrop's Vault. In order to use it, the certs/ dir needs to be restored for the specific domains that are being validated. Please add a new hook, e.g. this code, to allow for this to happen. I am not a bash expert, so there might be a need of some wrapper code to prevent older hooks from failing. Thx!

This code should be placed after certs dir is created, but before it loads any data from it: 10d4b98e7f/dehydrated (L1195)

    # allow hook to restore certificate state right before we load it
    [[ -n "${HOOK}" ]] && "${HOOK}" "preload_cert" "${domain}" "${certdir}"

Originally created by @nyurik on GitHub (Jun 27, 2018). In some cases, an external storage is used to keep the keys between runs, e.g. a HashiCrop's Vault. In order to use it, the `certs/` dir needs to be restored for the specific domains that are being validated. Please add a new hook, e.g. this code, to allow for this to happen. I am not a bash expert, so there might be a need of some wrapper code to prevent older hooks from failing. Thx! This code should be placed after certs dir is created, but before it loads any data from it: https://github.com/lukas2511/dehydrated/blob/10d4b98e7f1e2c5e0e5b16b0896aa7180e5a88f5/dehydrated#L1195 ```bash # allow hook to restore certificate state right before we load it [[ -n "${HOOK}" ]] && "${HOOK}" "preload_cert" "${domain}" "${certdir}" ```

adam closed this issue

2025-12-29 01:23:39 +01:00

adam commented

2025-12-29 01:23:39 +01:00

@lukas2511 commented on GitHub (Dec 11, 2020):

This seems like a very niche use case to me and I'm guessing that this behavior could simply be implemented using a wrapper script or during the startup hook, especially since dehydrated would call it for every single certificate anyways, might as well do it in batch.

@lukas2511 commented on GitHub (Dec 11, 2020): This seems like a very niche use case to me and I'm guessing that this behavior could simply be implemented using a wrapper script or during the startup hook, especially since dehydrated would call it for every single certificate anyways, might as well do it in batch.

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Reference: starred/dehydrated#358