40 lines
1.6 KiB
Bash
Executable File
40 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -o nounset
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set -o errexit
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current_ipv4="$(curl -s https://ipv4.icanhazip.com/)"
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zone_id=$(curl -s -X GET \
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"https://api.cloudflare.com/client/v4/zones?name=${CLOUDFLARE_RECORD_NAME#*.}&status=active" \
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-H "X-Auth-Email: ${CLOUDFLARE_EMAIL}" \
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-H "X-Auth-Key: ${CLOUDFLARE_APIKEY}" \
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-H "Content-Type: application/json" \
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| jq --raw-output ".result[0] | .id"
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)
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record_ipv4=$(curl -s -X GET \
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"https://api.cloudflare.com/client/v4/zones/${zone_id}/dns_records?name=${CLOUDFLARE_RECORD_NAME}&type=A" \
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-H "X-Auth-Email: ${CLOUDFLARE_EMAIL}" \
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-H "X-Auth-Key: ${CLOUDFLARE_APIKEY}" \
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-H "Content-Type: application/json" \
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)
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old_ip4=$(echo "$record_ipv4" | jq --raw-output '.result[0] | .content')
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if [[ "${current_ipv4}" == "${old_ip4}" ]]; then
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printf "%s - IP Address '%s' has not changed" "$(date -u)" "${current_ipv4}"
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exit 0
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fi
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record_ipv4_identifier="$(echo "$record_ipv4" | jq --raw-output '.result[0] | .id')"
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update_ipv4=$(curl -s -X PUT \
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"https://api.cloudflare.com/client/v4/zones/${zone_id}/dns_records/${record_ipv4_identifier}" \
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-H "X-Auth-Email: ${CLOUDFLARE_EMAIL}" \
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-H "X-Auth-Key: ${CLOUDFLARE_APIKEY}" \
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-H "Content-Type: application/json" \
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--data "{\"id\":\"${zone_id}\",\"type\":\"A\",\"proxied\":true,\"name\":\"${CLOUDFLARE_RECORD_NAME}\",\"content\":\"${current_ipv4}\"}" \
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)
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if [[ "$(echo "$update_ipv4" | jq --raw-output '.success')" == "true" ]]; then
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printf "%s - Success - IP Address '%s' has been updated" "$(date -u)" "${current_ipv4}"
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exit 0
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else
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printf "%s - Yikes - Updating IP Address '%s' has failed" "$(date -u)" "${current_ipv4}"
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exit 1
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fi
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