Use systemd for HAL boot (#40)

* Use systemd for HAL boot

* Removed unnecessary mkdir command

* Add  newline at the end of file

* Configure eth0 network interface

* Keep kernel naming scheme

* Fix agent.mk file for network interfaces

hal/linux/package/agent/agent.mk

@@ -12,7 +12,14 @@ define AGENT_BUILD_CMDS
 endef
 
 define AGENT_INSTALL_TARGET_CMDS
-	cp $(@D)/build/cocos-agent $(TARGET_DIR)/bin
+	$(INSTALL) -D -m 0755 $(@D)/build/cocos-agent $(TARGET_DIR)/bin
+	mkdir -p $(TARGET_DIR)/var/log/cocos
 endef
 
-$(eval $(golang-package))
+define AGENT_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 0644 $(@D)/init/systemd/cocos-agent.service $(TARGET_DIR)/usr/lib/systemd/system/cocos-agent.service
+	$(INSTALL) -D -m 0644 $(@D)/init/systemd/eth0.network $(TARGET_DIR)/etc/systemd/network
+	$(INSTALL) -D -m 0644 $(@D)/init/systemd/00-network.link $(TARGET_DIR)/etc/systemd/network
+endef
+
+$(eval $(golang-package))

init/systemd/00-network.link

@@ -0,0 +1,6 @@
+[Match]
+OriginalName=*
+
+[Link]
+NamePolicy=kernel
+MACAddressPolicy=persistent

init/systemd/cocos-agent.service

@@ -6,16 +6,11 @@ After=network.target
 StandardOutput=file:/var/log/cocos/agent.stdout
 StandardError=file:/var/log/cocos/agent.stderr
 
-Environment=NETWORK_INTERFACE=enp0s3
-Environment=AGENT_GRPC_HOST=10.0.2.15
+Environment=AGENT_GRPC_HOST=10.0.0.1
 Environment=AGENT_GRPC_PORT=7002
 Environment=AGENT_LOG_LEVEL=info
 
-ExecStartPre=ip link set dev $NETWORK_INTERFACE up
-ExecStartPre=dhclient $NETWORK_INTERFACE
-ExecStartPre=mkdir -p /var/log/cocos
-
-ExecStart=/cocos/agent
+ExecStart=/bin/cocos-agent
 
 [Install]
 WantedBy=default.target

init/systemd/eth0.network

@@ -0,0 +1,5 @@
+[Match]
+Name=eth0
+
+[Network]
+Address=10.0.0.1/24