SSL Node.js Encantos com Haproxy

Question

Ao escrever um encanto do Node.js que requer SSL, como devo escrever os ganchos da web da Haproxy?

Estou usando os seguintes ganchos com base no código de exemplo :

ganchos / website-relation-joined:

#!/bin/bash

relation-set "hostname=$(unit-get private-address)"
relation-set "port=80"

# Set an optional service name, allowing more config-based
# customization
relation-set "service_name=mindproject"

hooks / website-relation-changed:

#!/bin/bash

host=$(unit-get private-address)
port=80

relation-set "services={ service_name: mindproject,service_options: [mode http, balance leastconn],crts: [DEFAULT], servers: [[mindproject, $host, $port, option httpchk GET / HTTP/1.0]]}"

Depois de juju add-relation mindproject:website mind-proxy:reverseproxy , o encanto de Haproxy falha reverseproxy-relation-changed de gancho com este log:

2015-03-24 20:17:31 INFO reverseproxy-relation-changed ^MReading package lists... 0%^M^MReading package lists... 0%^M^MReading package lists... 1%^M^MReading package lists... 11%^M^MReading package lists.$
2015-03-24 20:17:31 INFO reverseproxy-relation-changed ^MBuilding dependency tree... 0%^M^MBuilding dependency tree... 0%^M^MBuilding dependency tree... 50%^M^MBuilding dependency tree... 50%^M^MBuilding $
2015-03-24 20:17:31 INFO reverseproxy-relation-changed ^MReading state information... 0%^M^MReading state information... 5%^M^MReading state information... Done
2015-03-24 20:17:32 INFO reverseproxy-relation-changed Traceback (most recent call last):
2015-03-24 20:17:32 INFO reverseproxy-relation-changed   File "/var/lib/juju/agents/unit-mind-proxy-0/charm/hooks/reverseproxy-relation-changed", line 1271, in <module>
2015-03-24 20:17:32 INFO reverseproxy-relation-changed     main(hook_name)
2015-03-24 20:17:32 INFO reverseproxy-relation-changed   File "/var/lib/juju/agents/unit-mind-proxy-0/charm/hooks/reverseproxy-relation-changed", line 1246, in main
2015-03-24 20:17:32 INFO reverseproxy-relation-changed     reverseproxy_interface("changed")
2015-03-24 20:17:32 INFO reverseproxy-relation-changed   File "/var/lib/juju/agents/unit-mind-proxy-0/charm/hooks/reverseproxy-relation-changed", line 946, in reverseproxy_interface
2015-03-24 20:17:32 INFO reverseproxy-relation-changed     config_changed()
2015-03-24 20:17:32 INFO reverseproxy-relation-changed   File "/var/lib/juju/agents/unit-mind-proxy-0/charm/hooks/reverseproxy-relation-changed", line 903, in config_changed
2015-03-24 20:17:32 INFO reverseproxy-relation-changed     if not create_services():
2015-03-24 20:17:32 INFO reverseproxy-relation-changed   File "/var/lib/juju/agents/unit-mind-proxy-0/charm/hooks/reverseproxy-relation-changed", line 577, in create_services
2015-03-24 20:17:32 INFO reverseproxy-relation-changed     relation_info['services'])
2015-03-24 20:17:32 INFO reverseproxy-relation-changed   File "/var/lib/juju/agents/unit-mind-proxy-0/charm/hooks/reverseproxy-relation-changed", line 473, in parse_services_yaml
2015-03-24 20:17:32 INFO reverseproxy-relation-changed     service_name = service["service_name"]
2015-03-24 20:17:32 INFO reverseproxy-relation-changed TypeError: string indices must be integers, not str
2015-03-24 20:17:32 ERROR juju.worker.uniter uniter.go:486 hook failed: exit status 1

    

Answer 1

Eu não acho que a documentação do haproxy charm esteja correta. Eu escrevi um pequeno script para modelar o yaml ingerido pelo haproxy. Seu site-relacionamento-gancho deve ficar assim:

#!/bin/bash
set -eux

host=$(unit-get private-address)
port=80

relation-set "services=[{'server_options': ['maxconn 100'], 'service_name': 'demo', 'servers': [['mindproject', '${host}', '${port}', '']], 'service_options': ['mode http', 'balance leastconn', 'option httpchk GET / HTTP/1.0']}]"

O principal problema com o código que você postou é que você está passando serviços como um dict quando ele está esperando um array. Além disso, a seção de servidores requer quatro parâmetros, mas o último parâmetro, que está documentado no readme como 'opção httpchk GET / HTTP / 1.0', precisa estar na sub-rotina service_options.

Espero que isso ajude!