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Current Interlock:

Set the desired port in the INTERLOCK_DATA env var: -e INTERLOCK_DATA='{"port":80}'

Interlock NG:

Set the desired port in a label: --label interlock.port=80

@ehazlett
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ehazlett commented Mar 1, 2016

This looks like it is working as expected:

The following gets port "80" exposed as it's the only port.

docker run --rm -ti -p 80:80 --hostname foo.local alpine ash

interlock:ehazlett interlock> ./cmd/interlock/interlock -D run -c ~/Sync/interlock.conf.haproxy                          
INFO[0000] interlock 1.0.0 (0f87cb0)                    
DEBU[0000] docker client: url=unix:///var/run/docker.sock 
DEBU[0000] loading extension: name=haproxy configpath=/tmp/haproxy.cfg 
DEBU[0000] starting event handling                      
DEBU[0000] checking to reload                           
DEBU[0000] reloading                                    
DEBU[0000] updating load balancers                      
DEBU[0000] generating proxy config                       ext=haproxy
INFO[0000] configuration updated                         ext=haproxy
DEBU[0000] dropping SYN packets to trigger client re-send  ext=haproxy
DEBU[0000] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0000] error signaling clients to resend; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0000] resuming SYN packets                          ext=haproxy
DEBU[0000] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0000] error signaling clients to resume; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0000] reload duration: 14.13ms                     
DEBU[0010] event received: type=create id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0010] event received: type=attach id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0010] event received: type= id=                    
DEBU[0010] event received: type=start id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0010] inspecting container: id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0010] checking container labels: id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0010] checking container ports: id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0010] container is monitored; triggering reload: id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0010] triggering reload                            
DEBU[0010] event received: type=resize id=701d1aedb4fc3777bc4e95815918ce0ec2b86ad867fe3f34ab5e033bcb946943 
DEBU[0011] reaping key: reload                          
DEBU[0011] triggering reload from cache                 
DEBU[0011] checking to reload                           
DEBU[0011] reloading                                    
DEBU[0011] updating load balancers                      
DEBU[0011] generating proxy config                       ext=haproxy
INFO[0011] foo.local: upstream=172.17.0.1:80 container=determined_wozniak  ext=haproxy
DEBU[0011] alias domains: []                             ext=haproxy
DEBU[0011] adding host name=foo_local domain=foo.local   ext=haproxy
INFO[0011] configuration updated                         ext=haproxy

If more than one port is published I can specify which port to use:

docker run --rm -ti -p 80:80 -p 3000:3000 --label interlock.port=80 --hostname foo.local alpine ash

You can see the upstream is 172.17.0.1:80

INFO[0000] interlock 1.0.0 (0f87cb0)                    
DEBU[0000] docker client: url=unix:///var/run/docker.sock 
DEBU[0000] loading extension: name=haproxy configpath=/tmp/haproxy.cfg 
DEBU[0000] starting event handling                      
DEBU[0000] checking to reload                           
DEBU[0000] reloading                                    
DEBU[0000] updating load balancers                      
DEBU[0000] generating proxy config                       ext=haproxy
INFO[0000] configuration updated                         ext=haproxy
DEBU[0000] dropping SYN packets to trigger client re-send  ext=haproxy
DEBU[0000] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0000] error signaling clients to resend; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0000] resuming SYN packets                          ext=haproxy
DEBU[0000] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0000] error signaling clients to resume; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0000] reload duration: 12.87ms                     
DEBU[0007] event received: type=create id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0007] event received: type=attach id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0007] event received: type= id=                    
DEBU[0007] event received: type=start id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0007] inspecting container: id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0007] checking container labels: id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0007] checking container ports: id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0007] container is monitored; triggering reload: id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0007] triggering reload                            
DEBU[0007] event received: type=resize id=07223ce67654856216f540cfcf5d1b08af79c9766f61671578d554d7e796cd5c 
DEBU[0008] reaping key: reload                          
DEBU[0008] triggering reload from cache                 
DEBU[0008] checking to reload                           
DEBU[0008] reloading                                    
DEBU[0008] updating load balancers                      
DEBU[0008] generating proxy config                       ext=haproxy
DEBU[0008] foo.local: found specified port 80 exposed as 80  ext=haproxy
INFO[0008] foo.local: upstream=172.17.0.1:80 container=admiring_ptolemy  ext=haproxy
DEBU[0008] alias domains: []                             ext=haproxy
DEBU[0008] adding host name=foo_local domain=foo.local   ext=haproxy
INFO[0008] configuration updated                         ext=haproxy
DEBU[0008] dropping SYN packets to trigger client re-send  ext=haproxy
DEBU[0008] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0008] error signaling clients to resend; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0008] resuming SYN packets                          ext=haproxy
DEBU[0008] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0008] error signaling clients to resume; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0008] reload duration: 13.90ms

I can change the port specification for interlock and it adheres:

docker run --rm -ti -p 80:80 -p 3000:3000 --label interlock.port=3000 --hostname foo.local alpine ash

Here I'm specifying port 3000 instead of 80.

INFO[0000] interlock 1.0.0 (0f87cb0)                    
DEBU[0000] docker client: url=unix:///var/run/docker.sock 
DEBU[0000] loading extension: name=haproxy configpath=/tmp/haproxy.cfg 
DEBU[0000] starting event handling                      
DEBU[0000] checking to reload                           
DEBU[0000] reloading                                    
DEBU[0000] updating load balancers                      
DEBU[0000] generating proxy config                       ext=haproxy
INFO[0000] configuration updated                         ext=haproxy
DEBU[0000] dropping SYN packets to trigger client re-send  ext=haproxy
DEBU[0000] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0000] error signaling clients to resend; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0000] resuming SYN packets                          ext=haproxy
DEBU[0000] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0000] error signaling clients to resume; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0000] reload duration: 14.54ms                     
DEBU[0004] event received: type=create id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0004] event received: type=attach id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0004] event received: type= id=                    
DEBU[0004] event received: type=start id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0004] inspecting container: id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0004] checking container labels: id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0004] checking container ports: id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0004] container is monitored; triggering reload: id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0004] triggering reload                            
DEBU[0004] event received: type=resize id=e6cbd64c80f8e5577662ee806d6a3a321040b1230478c836dc9b58feb6b9326c 
DEBU[0005] reaping key: reload                          
DEBU[0005] triggering reload from cache                 
DEBU[0005] checking to reload                           
DEBU[0005] reloading                                    
DEBU[0005] updating load balancers                      
DEBU[0005] generating proxy config                       ext=haproxy
DEBU[0005] foo.local: found specified port 3000 exposed as 3000  ext=haproxy
INFO[0005] foo.local: upstream=172.17.0.1:3000 container=sleepy_almeida  ext=haproxy
DEBU[0005] alias domains: []                             ext=haproxy
DEBU[0005] adding host name=foo_local domain=foo.local   ext=haproxy
INFO[0005] configuration updated                         ext=haproxy
DEBU[0005] dropping SYN packets to trigger client re-send  ext=haproxy
DEBU[0005] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0005] error signaling clients to resend; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0005] resuming SYN packets                          ext=haproxy
DEBU[0005] &{/sbin/iptables [/sbin/iptables -I INPUT -p tcp --dport 80 --syn -j DROP] []  <nil> <nil> <nil> [] <nil> <nil> <nil> <nil> false [] [] [] [] <nil>}  ext=haproxy
WARN[0005] error signaling clients to resume; you will notice dropped packets: exit status 3  ext=haproxy
DEBU[0005] reload duration: 15.45ms

You can see the upstream selected is using port 3000.

@ehazlett
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ehazlett commented Mar 1, 2016

FWIW I also verified this with the nginx extension as well. Both working as expected. If you continue to have issues please file an issue on github. Thanks!

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