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Added support for Google Cloud DNS API (dns_gcloud)

master
Janos Lenart 7 years ago
parent
commit
0a3ac1f5c3
  1. 1
      README.md
  2. 21
      dnsapi/README.md
  3. 167
      dnsapi/dns_gcloud.sh

1
README.md

@ -274,6 +274,7 @@ You don't have to do anything manually!
### Currently acme.sh supports:
1. Google Cloud DNS API
1. CloudFlare.com API
1. DNSPod.cn API
1. CloudXNS.com API

21
dnsapi/README.md

@ -4,6 +4,27 @@ If your dns provider doesn't provide api access, you can use our dns alias mode:
https://github.com/Neilpang/acme.sh/wiki/DNS-alias-mode
## 1. Use Google Cloud DNS API to automatically issue cert
First you need to authenticate to gcloud.
```
gcloud init
```
**The `dns_gcloud` script uses the active gcloud configuration and credentials.**
There is no logic inside `dns_gcloud` to override the project and other settings.
If needed, create additional [gcloud configurations](https://cloud.google.com/sdk/gcloud/reference/topic/configurations).
You can change the configuration being used without *activating* it; simply set the `CLOUDSDK_ACTIVE_CONFIG_NAME` environment variable.
To issue a certificate you can:
```
export CLOUDSDK_ACTIVE_CONFIG_NAME=default # see the note above
acme.sh --issue --dns dns_gcloud -d example.com -d '*.example.com'
```
`dns_gcloud` also supports [DNS alias mode](https://github.com/Neilpang/acme.sh/wiki/DNS-alias-mode).
## 1. Use CloudFlare domain API to automatically issue cert
First you need to login to your CloudFlare account to get your API key.

167
dnsapi/dns_gcloud.sh

@ -0,0 +1,167 @@
#!/usr/bin/env sh
# Author: Janos Lenart <janos@lenart.io>
######## Public functions #####################
# Usage: dns_gcloud_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_gcloud_add() {
fulldomain=$1
txtvalue=$2
_info "Using gcloud"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txtvalue"
_dns_gcloud_find_zone || return $?
# Add an extra RR
_dns_gcloud_start_tr || return $?
_dns_gcloud_get_rrdatas || return $?
echo "$rrdatas" | _dns_gcloud_remove_rrs || return $?
echo -e "$rrdatas\n\"$txtvalue\"" | grep -v '^$' | _dns_gcloud_add_rrs || return $?
_dns_gcloud_execute_tr || return $?
_info "$fulldomain record added"
}
# Usage: dns_gcloud_rm _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
# Remove the txt record after validation.
dns_gcloud_rm() {
fulldomain=$1
txtvalue=$2
_info "Using gcloud"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txtvalue"
_dns_gcloud_find_zone || return $?
# Remove one RR
_dns_gcloud_start_tr || return $?
_dns_gcloud_get_rrdatas || return $?
echo "$rrdatas" | _dns_gcloud_remove_rrs || return $?
echo "$rrdatas" | fgrep -v "\"$txtvalue\"" | _dns_gcloud_add_rrs || return $?
_dns_gcloud_execute_tr || return $?
_info "$fulldomain record added"
}
#################### Private functions below ##################################
_dns_gcloud_start_tr() {
if ! trd=`mktemp -d`; then
_err "_dns_gcloud_start_tr: failed to create temporary directory"
return 1
fi
tr="$trd/tr.yaml"
_debug tr "$tr"
if ! gcloud dns record-sets transaction start \
--transaction-file="$tr" \
--zone="$managedZone"; then
rm -r "$trd"
_err "_dns_gcloud_start_tr: failed to execute transaction"
return 1
fi
}
_dns_gcloud_execute_tr() {
if ! gcloud dns record-sets transaction execute \
--transaction-file="$tr" \
--zone="$managedZone"; then
_debug tr "`cat \"$tr\"`"
rm -r "$trd"
_err "_dns_gcloud_execute_tr: failed to execute transaction"
return 1
fi
rm -r "$trd"
for i in `seq 1 120`; do
if gcloud dns record-sets changes list \
--zone=lenart \
--filter='status != done' \
| grep -q '.*'; then
_info "_dns_gcloud_execute_tr: waiting for transaction to be comitted ..."
sleep 5
else
return 0
fi
done
_err "_dns_gcloud_execute_tr: transaction is still pending after 10 minutes"
rm -r "$trd"
return 1
}
_dns_gcloud_remove_rrs() {
if ! xargs --no-run-if-empty gcloud dns record-sets transaction remove \
--name="$fulldomain." \
--ttl="$ttl" \
--type=TXT \
--zone="$managedZone" \
--transaction-file="$tr"; then
_debug tr "`cat \"$tr\"`"
rm -r "$trd"
_err "_dns_gcloud_remove_rrs: failed to remove RRs"
return 1
fi
}
_dns_gcloud_add_rrs() {
ttl=60
if ! xargs --no-run-if-empty gcloud dns record-sets transaction add \
--name="$fulldomain." \
--ttl="$ttl" \
--type=TXT \
--zone="$managedZone" \
--transaction-file="$tr"; then
_debug tr "`cat \"$tr\"`"
rm -r "$trd"
_err "_dns_gcloud_add_rrs: failed to add RRs"
return 1
fi
}
_dns_gcloud_find_zone() {
# Prepare a filter that matches zones that are suiteable for this entry.
# For example, _acme-challenge.something.domain.com might need to go into something.domain.com or domain.com;
# this function finds the longest postfix that has a managed zone.
part="$fulldomain"
filter="dnsName=( "
while [ "$part" != "" ]; do
filter="$filter$part. "
part="`echo \"$part\" | sed 's/[^.]*\.*//'`"
done
filter="$filter)"
_debug filter "$filter"
# List domains and find the longest match (in case of some levels of delegation)
if ! match=$(gcloud dns managed-zones list \
--format="value(name, dnsName)" \
--filter="$filter" \
| while read dnsName name; do
echo -e "${#dnsName}\t$dnsName\t$name"
done \
| sort -n -r | head -n1 | cut -f2,3 | grep '.*'); then
_err "_dns_gcloud_find_zone: Can't find a matching managed zone! Perhaps wrong project or gcloud credentials?"
return 1
fi
dnsName=$(echo "$match" | cut -f2)
_debug dnsName "$dnsName"
managedZone=$(echo "$match" | cut -f1)
_debug managedZone "$managedZone"
}
_dns_gcloud_get_rrdatas() {
if ! rrdatas=$(gcloud dns record-sets list \
--zone="$managedZone" \
--name="$fulldomain." \
--type=TXT \
--format="value(ttl,rrdatas)"); then
_err "_dns_gcloud_get_rrdatas: Failed to list record-sets"
rm -r "$trd"
return 1
fi
ttl=$(echo "$rrdatas" | cut -f1)
rrdatas=$(echo "$rrdatas" | cut -f2 | sed 's/","/"\n"/g')
}
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