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feat(relay): add ec2 metadata discovery (#6617)

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This PR adds support for EC2 IMDSv2 metadata API in order to discover
public IPv4 and IPv6.
This commit is contained in:
Antoine
2024-09-12 20:28:55 +02:00
committed by GitHub
parent e30127dbff
commit 5a0aaf5cda
1 changed files with 19 additions and 0 deletions
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19
rust/docker-init-relay.sh
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@@ -19,6 +19,25 @@ if [ "${LISTEN_ADDRESS_DISCOVERY_METHOD}" = "gce_metadata" ]; then
export PUBLIC_IP6_ADDR="${public_ip6}"
echo "Discovered PUBLIC_IP6_ADDR: ${PUBLIC_IP6_ADDR}"
fi
elif [ "${LISTEN_ADDRESS_DISCOVERY_METHOD}" = "aws_ec2_metadata" ]; then
echo "Using AWS EC2 metadata to discover listen address"
token=$(curl -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 60")
if [ "${PUBLIC_IP4_ADDR}" = "" ]; then
public_ip4=$(curl --fail "http://169.254.169.254/latest/meta-data/public-ipv4" -H "X-aws-ec2-metadata-token: $token")
if [ $? -eq 0 ]; then
export PUBLIC_IP4_ADDR="${public_ip4}"
echo "Discovered PUBLIC_IP4_ADDR: ${PUBLIC_IP4_ADDR}"
fi
fi
if [ "${PUBLIC_IP6_ADDR}" = "" ]; then
public_ip6=$(curl --fail "http://169.254.169.254/latest/meta-data/ipv6" -H "X-aws-ec2-metadata-token: $token")
if [ $? -eq 0 ]; then
export PUBLIC_IP6_ADDR="${public_ip6}"
echo "Discovered PUBLIC_IP6_ADDR: ${PUBLIC_IP6_ADDR}"
fi
fi
fi
if [ "${OTEL_METADATA_DISCOVERY_METHOD}" = "gce_metadata" ]; then