fix(config): strip double-quotes from env vars

[oleksandr-nc]

Fixes: #78

Also this PR adds printing of the FRP configs if HP_VERBOSE_START is set to 1

Docker compose to test (analogue of redeploy.sh from this repo):

services:
  appapi-harp:
    image: nextcloud-appapi-harp:local
    container_name: appapi-harp
    hostname: appapi-harp
    restart: unless-stopped
    environment:
      - HP_SHARED_KEY="some_very_secure_password"
      - NC_INSTANCE_URL="http://nextcloud.local"
      - HP_EXAPPS_ADDRESS="appapi-harp:8780"
      - HP_LOG_LEVEL=info
      - HP_VERBOSE_START=1
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - ../certs:/certs
    ports:
      - "8780:8780"
      - "8782:8782"
    healthcheck:
      test: ["CMD", "/healthcheck.sh"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 60s

networks:
  default:
    name: master_default
    external: true

1. Build the local image first:
   docker build -t nextcloud-appapi-harp:local .

2. Run with docker-compose:
   docker compose -f development/docker-compose.test.yml up

Without this fix we can only observe such information:

2026-01-06T11:41:54.675068657Z [2026-01-06T11:41:54+0000] [INFO] 127.0.0.1 [06/Jan/2026:11:41:54 +0000] "GET /info HTTP/1.1" 200 175 "-" "curl/8.14.1"
2026-01-06T11:41:54.675320738Z INFO: Waiting for SPOA port 127.0.0.1:9600...
2026-01-06T11:41:54.676466645Z INFO: Starting FRP server on 0.0.0.0:8782...
2026-01-06T11:41:54.676554713Z INFO: Waiting for FRP server port 127.0.0.1:8782...
2026-01-06T11:41:55.179112939Z INFO: Starting FRP client for Docker Engine...
2026-01-06T11:41:55.179149960Z INFO: Starting HAProxy...
2026-01-06T11:41:55.182541122Z error unmarshaling JSON: while decoding JSON: json: cannot unmarshal string into Go value of type v1.ClientConfig
2026-01-06T11:41:55.183047798Z [NOTICE]   (1) : Initializing new worker (50)
2026-01-06T11:41:55.185275359Z [NOTICE]   (1) : haproxy version is 3.1.2-cda631a
2026-01-06T11:41:55.185287533Z [WARNING]  (1) : Process 41 exited with code 1 (Exit)
2026-01-06T11:41:55.208666626Z [NOTICE]   (1) : Loading success.

When running on this branch the output will include FRP configs and deploy will work ok:

2026-01-06T11:43:21.998757669Z INFO: FRP server configuration generated at /frps.toml.
2026-01-06T11:43:21.998762367Z INFO: Generated /frps.toml:
2026-01-06T11:43:21.998972438Z bindAddr = "0.0.0.0"
2026-01-06T11:43:21.998982808Z bindPort = 8782
2026-01-06T11:43:21.998985042Z proxyBindAddr = "127.0.0.1"
2026-01-06T11:43:21.998986255Z 
2026-01-06T11:43:21.998987207Z transport.tls.force = true
2026-01-06T11:43:21.998988168Z transport.tls.certFile = "/certs/frp/server.crt"
2026-01-06T11:43:21.998988990Z transport.tls.keyFile = "/certs/frp/server.key"
2026-01-06T11:43:21.998989791Z transport.tls.trustedCaFile = "/certs/frp/ca.crt"
2026-01-06T11:43:21.998990623Z 
2026-01-06T11:43:21.998991324Z log.to = "/frps.log"
2026-01-06T11:43:21.998992096Z log.level = "info"
2026-01-06T11:43:21.998992887Z log.maxDays = 3
2026-01-06T11:43:21.998993639Z 
2026-01-06T11:43:21.998994340Z maxPortsPerClient = 1
2026-01-06T11:43:21.998995092Z allowPorts = [
2026-01-06T11:43:21.998995813Z   { start = 23000, end = 23999 },
2026-01-06T11:43:21.999000151Z   { start = 24000, end = 24099 }
2026-01-06T11:43:21.999001003Z ]
2026-01-06T11:43:21.999001734Z 
2026-01-06T11:43:21.999002436Z [[httpPlugins]]
2026-01-06T11:43:21.999003207Z addr = "127.0.0.1:8200"
2026-01-06T11:43:21.999004009Z path = "/frp_handler"
2026-01-06T11:43:21.999004780Z ops = ["Login"]
2026-01-06T11:43:21.999180215Z INFO: Detected /var/run/docker.sock, generating /frpc-docker.toml configuration file...
2026-01-06T11:43:21.999960564Z INFO: Generated /frpc-docker.toml:
2026-01-06T11:43:22.000195472Z serverAddr = "127.0.0.1"
2026-01-06T11:43:22.000203397Z serverPort = 8782
2026-01-06T11:43:22.000205020Z 
2026-01-06T11:43:22.000206012Z transport.tls.enable = true
2026-01-06T11:43:22.000206824Z transport.tls.certFile = "/certs/frp/client.crt"
2026-01-06T11:43:22.000207686Z transport.tls.keyFile = "/certs/frp/client.key"
2026-01-06T11:43:22.000208988Z transport.tls.trustedCaFile = "/certs/frp/ca.crt"
2026-01-06T11:43:22.000210311Z transport.tls.serverName = "harp.nc"
2026-01-06T11:43:22.000211583Z 
2026-01-06T11:43:22.000212795Z metadatas.token = "some_very_secure_password"
2026-01-06T11:43:22.000214088Z 
2026-01-06T11:43:22.000216733Z [[proxies]]
2026-01-06T11:43:22.000217534Z remotePort = 24000
2026-01-06T11:43:22.000218276Z type = "tcp"
2026-01-06T11:43:22.000219057Z name = "bundled-deploy-daemon"
2026-01-06T11:43:22.000219889Z [proxies.plugin]
2026-01-06T11:43:22.000220650Z type = "unix_domain_socket"
2026-01-06T11:43:22.000221502Z unixPath = "/var/run/docker.sock"
2026-01-06T11:43:22.000276888Z INFO: Starting Python HaProxy Agent on 127.0.0.1:8200 and 127.0.0.1:9600...
2026-01-06T11:43:22.000377449Z INFO: Waiting for HaRP Agent HTTP (GET http://127.0.0.1:8200/info) to be ready...
2026-01-06T11:43:22.206705834Z [2026-01-06T11:43:22+0000] [INFO] Starting both servers: SPOA on 127.0.0.1:9600, HTTP on 127.0.0.1:8200
2026-01-06T11:43:22.207014784Z [2026-01-06T11:43:22+0000] [INFO] HTTP server listening at 127.0.0.1:8200
2026-01-06T11:43:22.207170962Z [2026-01-06T11:43:22+0000] [INFO] HAProxy SPO Agent listening at 127.0.0.1:9600
2026-01-06T11:43:22.506969437Z [2026-01-06T11:43:22+0000] [INFO] 127.0.0.1 [06/Jan/2026:11:43:22 +0000] "GET /info HTTP/1.1" 200 175 "-" "curl/8.14.1"
2026-01-06T11:43:22.507092832Z INFO: Waiting for SPOA port 127.0.0.1:9600...
2026-01-06T11:43:22.508156622Z INFO: Starting FRP server on 0.0.0.0:8782...
2026-01-06T11:43:22.508200967Z INFO: Waiting for FRP server port 127.0.0.1:8782...
2026-01-06T11:43:23.010519290Z INFO: Starting FRP client for Docker Engine...
2026-01-06T11:43:23.010554637Z INFO: Starting HAProxy...
2026-01-06T11:43:23.013948122Z 2026-01-06 11:43:23.013 [I] [sub/root.go:142] start frpc service for config file [/frpc-docker.toml]
2026-01-06T11:43:23.013969252Z 2026-01-06 11:43:23.013 [I] [client/service.go:295] try to connect to server...
2026-01-06T11:43:23.014287470Z [NOTICE]   (1) : Initializing new worker (71)
2026-01-06T11:43:23.018731008Z [2026-01-06T11:43:23+0000] [INFO] 127.0.0.1 [06/Jan/2026:11:43:23 +0000] "POST /frp_handler?op=Login&version=0.1.0 HTTP/1.1" 200 194 "-" "Go-http-client/1.1"
2026-01-06T11:43:23.018851638Z 2026-01-06 11:43:23.018 [I] [client/service.go:287] [cba2c6c0d8cc8904] login to server success, get run id [cba2c6c0d8cc8904]
2026-01-06T11:43:23.018947702Z 2026-01-06 11:43:23.018 [I] [proxy/proxy_manager.go:173] [cba2c6c0d8cc8904] proxy added: [bundled-deploy-daemon]
2026-01-06T11:43:23.019763168Z 2026-01-06 11:43:23.019 [I] [client/control.go:168] [cba2c6c0d8cc8904] [bundled-deploy-daemon] start proxy success
2026-01-06T11:43:23.036991982Z [NOTICE]   (1) : Loading success.

[kyteinsky]

🚀