[Backlogmanager] [FIWARE-JIRA] (HELP-18200) [fiware-stackoverflow] Dockerize FIWARE can' t notify a service

[Fernando Lopez (JIRA)]

     [ https://jira.fiware.org/browse/HELP-18200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fernando Lopez updated HELP-18200:
----------------------------------
    Status: Answered  (was: In Progress)

> [fiware-stackoverflow] Dockerize FIWARE can't notify a service
> ------------------------------------------------------------------
>
>                 Key: HELP-18200
>                 URL: https://jira.fiware.org/browse/HELP-18200
>             Project: Help-Desk
>          Issue Type: Monitor
>          Components: FIWARE-TECH-HELP
>            Reporter: Backlog Manager
>            Assignee: Jason Fox
>              Labels: docker, fiware, fiware-orion, postman
>
> Created question in FIWARE Q/A platform on 02-09-2021 at 01:09
> {color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/69023070/dockerize-fiware-cant-notify-a-service
> +Question:+
> Dockerize FIWARE can't notify a service
> +Description:+
> I just started to use FIWARE. I downloaded the latest version on the website (v2) using docker-compose on a PopOs distro.
> I'm using Postman to make requests (create the entities and subscriptions) and a Laravel application to listen the notification from the FIWARE subscriptions. But for some reason, today, when I started the docker service and start to send requests: the FIWARE notifications suddenly stopped to work.
> When I access the subscriptions endpoint FIWARE returns:
>         "notification": {
>             "timesSent": 1,
>             "lastNotification": "2021-09-02T01:19:39.000Z",
>             "attrs": [],
>             "onlyChangedAttrs": false,
>             "attrsFormat": "keyValues",
>             "http": {
>                 "url": "http://localhost:8000/api/notifications"
>             },
>             "lastFailure": "2021-09-02T01:19:39.000Z",
>             "lastFailureReason": "Couldn't connect to server"
>         }
> FIWARE can't comunicate, but if I make a POST request using Postman for that endpoint (http://localhost:8000/api/notifications) it returns 200.
> There's some aditional configuration between the FIWARE docker container and the local machine? Or I'm doing something wrong?
> This is my entity:
> // http://{{orion}}/v2/subscription
> {
>     "id": "movie",
>     "type": "movie",
>     "name": {
>         "type": "text",
>         "value": "movie name"
>     },
>     "gender": {
>         "type": "text",
>         "value": "drama"
>     }
> }
> This is how I'm doing the subscription:
> // http://{{orion}}/v2/subscriptions
> {
>     "description": "Notify me about any movie of gender drama",
>     "subject": {
>         "entities": [{"idPattern": ".*","type": "movie"}],
>         "condition": {
>             "attrs": ["gender"],
>             "expression": {
>                 "q": "gender==drama"
>             }
>         }
>     },
>     "notification": {
>         "http": {
>             "url": "http://127.0.0.1:8000/api/notifications"
>         }
>     }
> }



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