Install openflow with podman

OpenFlow
1

Hi,

I’m trying to install openflow in onpremise using “docker” installation. I’ve tried multiple distros:

CentOS 8 + Docker: Fails starting mongodb and openflow container restart constantly
CentOS 8 + Podman: Fails starting mongodb and openflow container restart constantly
Ubuntu Server 22 + Podman: Fails starting mongodb and openflow container restart constantly
Ubuntu Server 22 + Docker: Runs smoothly (but I can’t use this OS)

I’d like to use CentOS + Podman, but I don’t know if there is a problem with this combo.

Containers status remains like this:

  • [root@beta docker]# podman ps
    CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
    562b8894b8d9 docker…io/library/mongo:latest --bind_ip_all --r… 10 minutes ago Up 10 minutes ago demo_mongodb_1
    8c340bd6f543 docker…io/library/traefik:latest --providers.docke… 10 minutes ago Up 10 minutes ago 0.0.0.0:80->80/tcp demo_traefik_1
    deaf5f9cae23 docker…io/library/rabbitmq:latest rabbitmq-server 10 minutes ago Up 10 minutes ago demo_rabbitmq_1
    d2340a3ef656 docker…io/openiap/openflow:latest 10 minutes ago Up 10 seconds ago 0.0.0.0:5858->5858/tcp demo_api_1

The errors we’re having are:

  • Mongodb container:
    {“t”:{“$date”:“2023-03-10T12:56:26.280+00:00”},“s”:“I”, “c”:“-”, “id”:4939300, “ctx”:“monitoring-keys-for-HMAC”,“msg”:“Failed to refresh key cache”,“attr”:{“error”:“NotYetInitialized: Cannot use non-local read concern until replica set is finished initializing.”,“nextWakeupMillis”:14800}} – Constantly

  • Openflow container:
    12:58:14.344 [index ][process.] 404
    Debugger listening on ws://0.0.0.0:5858/65c0157b-e0d9-4ce3-8c32-ad5061105a83
    12:58:17.356 Starting @openiap/openflow
    12:58:19.418 Done loading imports
    12:58:20.12 [otel ][configure] Missing license_key
    12:58:20.20 [otel ][setdefaultlabels] ofid=2f8aed4cd848153036ab77e38681a5e1
    Tracing initialized
    12:58:20.51 [dockerdriver ][detect] Docker not detected: connect EACCES /var/run/docker.sock
    12:58:20.56 [dockerdriver ][detect] Docker not detected: connect EACCES /var/run/docker.sock
    12:58:20.61 [DatabaseConnection ][connect] Connecting to mongodb
    MongoServerSelectionError: getaddrinfo EAI_AGAIN mongodb
    at Timeout._onTimeout (/data/node_modules/mongodb/lib/sdam/topology.js:292:38)
    at listOnTimeout (node:internal/timers:569:17)
    at process.processTimers (node:internal/timers:512:7) {
    reason: TopologyDescription {
    type: ‘ReplicaSetNoPrimary’,
    servers: Map(1) { ‘mongodb:27017’ => [ServerDescription] },
    stale: false,
    compatible: true,
    heartbeatFrequencyMS: 10000,
    localThresholdMS: 15,
    setName: ‘rs0’,
    maxElectionId: null,
    maxSetVersion: null,
    commonWireVersion: 0,
    logicalSessionTimeoutMinutes: null
    },
    code: undefined,
    [Symbol(errorLabels)]: Set(0) {}
    }

Has someone achieved to install openflo with centOS + Podman?
Is there any kind of incompatibility with this combo?

Thanks in advance and best regards.

PS: I’ve edited every links in order to post the logs.

2

I have no expereince with podman, but a quick google search shows it does not by default expose a docker api. Openflow require this to be able to start/stop agents. Maybe this link can help you fix that.

I have no idear what it requires to make mongodb with an replicateset up at working in podman.
You can look at older versions of the docker repositriy for how to start it without a replicate set, but I don’t plan on supporting openflow running on non-replicateset mongodbs moving forward. ( but should work right now, not tested )

3

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