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fix(ipv6): allow disabling IPv6 resolve #6023

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Jan 12, 2022
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4 changes: 2 additions & 2 deletions apisix/cli/ngx_tpl.lua
Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ stream {
lua_shared_dict plugin-limit-conn-stream {* stream.lua_shared_dict["plugin-limit-conn-stream"] *};
lua_shared_dict etcd-cluster-health-check-stream {* stream.lua_shared_dict["etcd-cluster-health-check-stream"] *};

resolver {% for _, dns_addr in ipairs(dns_resolver or {}) do %} {*dns_addr*} {% end %} {% if dns_resolver_valid then %} valid={*dns_resolver_valid*}{% end %};
resolver {% for _, dns_addr in ipairs(dns_resolver or {}) do %} {*dns_addr*} {% end %} {% if dns_resolver_valid then %} valid={*dns_resolver_valid*}{% end %} ipv6={% if enable_ipv6 then %}on{% else %}off{% end %};
resolver_timeout {*resolver_timeout*};

{% if ssl.ssl_trusted_certificate ~= nil then %}
Expand Down Expand Up @@ -248,7 +248,7 @@ http {

lua_socket_log_errors off;

resolver {% for _, dns_addr in ipairs(dns_resolver or {}) do %} {*dns_addr*} {% end %} {% if dns_resolver_valid then %} valid={*dns_resolver_valid*}{% end %};
resolver {% for _, dns_addr in ipairs(dns_resolver or {}) do %} {*dns_addr*} {% end %} {% if dns_resolver_valid then %} valid={*dns_resolver_valid*}{% end %} ipv6={% if enable_ipv6 then %}on{% else %}off{% end %};
resolver_timeout {*resolver_timeout*};

lua_http10_buffering off;
Expand Down
1 change: 1 addition & 0 deletions apisix/cli/ops.lua
Original file line number Diff line number Diff line change
Expand Up @@ -552,6 +552,7 @@ Please modify "admin_key" in conf/config.yaml .
admin_server_addr = admin_server_addr,
control_server_addr = control_server_addr,
prometheus_server_addr = prometheus_server_addr,
enable_ipv6 = yaml_conf.apisix.enable_ipv6,
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The enable_ipv6 is already imported below

}

if not yaml_conf.apisix then
Expand Down
22 changes: 19 additions & 3 deletions t/cli/test_dns.sh
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ apisix:

make init

if ! grep "resolver 127.0.0.1 \[::1\]:5353 valid=30;" conf/nginx.conf > /dev/null; then
if ! grep "resolver 127.0.0.1 \[::1\]:5353 valid=30 ipv6=on;" conf/nginx.conf > /dev/null; then
echo "failed: dns_resolver_valid doesn't take effect"
exit 1
fi
Expand All @@ -52,7 +52,7 @@ apisix:

make init

count=$(grep -c "resolver 127.0.0.1 \[::1\]:5353 valid=30;" conf/nginx.conf)
count=$(grep -c "resolver 127.0.0.1 \[::1\]:5353 valid=30 ipv6=on;" conf/nginx.conf)
if [ "$count" -ne 2 ]; then
echo "failed: dns_resolver_valid doesn't take effect"
exit 1
Expand All @@ -73,10 +73,26 @@ apisix:

make init

count=$(grep -c "resolver 127.0.0.1 \[::1\] \[::2\];" conf/nginx.conf)
count=$(grep -c "resolver 127.0.0.1 \[::1\] \[::2\] ipv6=on;" conf/nginx.conf)
if [ "$count" -ne 2 ]; then
echo "failed: can't handle IPv6 resolver w/o bracket"
exit 1
fi

echo "pass: handle IPv6 resolver w/o bracket"

# ipv6 config test
echo '
apisix:
enable_ipv6: false
dns_resolver:
- 127.0.0.1
dns_resolver_valid: 30
' > conf/config.yaml

make init

if ! grep "resolver 127.0.0.1 valid=30 ipv6=off;" conf/nginx.conf > /dev/null; then
echo "failed: ipv6 config doesn't take effect"
exit 1
fi