Merge pull request #713 from Neilpang/dev

Dev
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neil 2017-03-08 21:36:45 +08:00 committed by GitHub
commit 2587639914
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@ -307,6 +307,7 @@ You don't have to do anything manually!
1. cyon.ch
1. Domain-Offensive/Resellerinterface/Domainrobot API
1. Gandi LiveDNS API
1. Knot DNS API
**More APIs coming soon...**

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@ -349,6 +349,51 @@ Ok, let's issue a cert now:
acme.sh --issue --dns dns_gandi_livedns -d example.com -d www.example.com
```
## 19. Use Knot (knsupdate) DNS API to automatically issue cert
First, generate a TSIG key for updating the zone.
```
keymgr tsig generate acme_key algorithm hmac-sha512 > /etc/knot/acme.key
```
Include this key in your knot configuration file.
```
include: /etc/knot/acme.key
```
Next, configure your zone to allow dynamic updates.
Dynamic updates for the zone are allowed via proper ACL rule with the `update` action. For in-depth instructions, please see [Knot DNS's documentation](https://www.knot-dns.cz/documentation/).
```
acl:
- id: acme_acl
address: 192.168.1.0/24
key: acme_key
action: update
zone:
- domain: example.com
file: example.com.zone
acl: acme_acl
```
Finally, make the DNS server and TSIG Key available to `acme.sh`
```
export KNOT_SERVER="dns.example.com"
export KNOT_KEY=`grep \# /etc/knot/acme.key | cut -d' ' -f2`
```
Ok, let's issue a cert now:
```
acme.sh --issue --dns dns_knot -d example.com -d www.example.com
```
The `KNOT_SERVER` and `KNOT_KEY` settings will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
# Use custom API
If your API is not supported yet, you can write your own DNS API.

95
dnsapi/dns_knot.sh Normal file
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#!/usr/bin/env sh
######## Public functions #####################
#Usage: dns_knot_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_knot_add() {
fulldomain=$1
txtvalue=$2
_checkKey || return 1
[ -n "${KNOT_SERVER}" ] || KNOT_SERVER="localhost"
# save the dns server and key to the account.conf file.
_saveaccountconf KNOT_SERVER "${KNOT_SERVER}"
_saveaccountconf KNOT_KEY "${KNOT_KEY}"
if ! _get_root "$fulldomain"; then
_err "Domain does not exist."
return 1
fi
_info "Adding ${fulldomain}. 60 TXT \"${txtvalue}\""
knsupdate -y "${KNOT_KEY}" <<EOF
server ${KNOT_SERVER}
zone ${_domain}.
update add ${fulldomain}. 60 TXT "${txtvalue}"
send
quit
EOF
if [ $? -ne 0 ]; then
_err "Error updating domain."
return 1
fi
_info "Domain TXT record successfully added."
return 0
}
#Usage: dns_knot_rm _acme-challenge.www.domain.com
dns_knot_rm() {
fulldomain=$1
_checkKey || return 1
[ -n "${KNOT_SERVER}" ] || KNOT_SERVER="localhost"
if ! _get_root "$fulldomain"; then
_err "Domain does not exist."
return 1
fi
_info "Removing ${fulldomain}. TXT"
knsupdate -y "${KNOT_KEY}" <<EOF
server ${KNOT_SERVER}
zone ${_domain}.
update del ${fulldomain}. TXT
send
quit
EOF
if [ $? -ne 0 ]; then
_err "error updating domain"
return 1
fi
_info "Domain TXT record successfully deleted."
return 0
}
#################### Private functions below ##################################
# _acme-challenge.www.domain.com
# returns
# _domain=domain.com
_get_root() {
domain=$1
i="$(echo "$fulldomain" | tr '.' ' ' | wc -w)"
i=$(_math "$i" - 1)
while true; do
h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
if [ -z "$h" ]; then
return 1
fi
_domain="$h"
return 0
done
_debug "$domain not found"
return 1
}
_checkKey() {
if [ -z "${KNOT_KEY}" ]; then
_err "You must specify a TSIG key to authenticate the request."
return 1
fi
}