I did not configure anything, which is probably the problem.. I am following the tutorial. I just did what the tutorial instructed to do: So I have installed docker as instructed but haven't configured anything. The tutorial calls installing docker and does not state any action to take after installing....) as I am not familiar with docker, could not tell if there is a need to configure anything to make django channels work. I still need to do whatever is required to make the tutorial work.Do I need to learn basics of docker first, or are there some simple things I can do to enable the environment and keep going with the channels tutorial?
On Tue, Jan 15, 2019 at 6:38 PM PASCUAL Eric <eric.pasc...@cstb.fr> wrote: > Hi, > > > How is configured your Docker stack exactly ? You should have several > containers in it, at least one for the Redis server, another one for the > Django app. > > > Do you use docker-compose to run the stack ? If yes, could you provide the > YAML descriptor of the stack ? > > > Best > > > Eric > > > ------------------------------ > *From:* django-users@googlegroups.com <django-users@googlegroups.com> on > behalf of Yuval Bachrach <yuval.bachr...@gmail.com> > *Sent:* Tuesday, January 15, 2019 5:31:18 PM > *To:* django-users@googlegroups.com > *Subject:* channnels -- communication with redis > > > I fail to have django channels communication with redis running at docker > container: I am running the channels tutorial and I get an error when just > following the tutorial instructions. > > > I am quite new with Django (designed a simple site) and have no knowledge > on redis nor docker > > > I am trying to lean channels using the tutorial: > https://channels.readthedocs.io/en/latest/tutorial/ > > It uses redis over docker > > > > At tutorial part 2 there is a test for “channel layer can communicate > with Redis”. > > I fails this test. I was looking over the web for solving this > communication problem with no luck. > > As I am not familiar with redis nor docker, I have hard time analyzing the > reasons for the communication problems. I can see that redis is running > inside a docker container. > > > > $ docker ps > > CONTAINER ID IMAGE COMMAND > CREATED STATUS PORTS > > NAMES > > 2bdabc272ec3 redis "docker-entrypoint.s…" About an > hour ago Up About an hour 0.0.0.0:6379->6379/tcp > > quizzical_panini > > $ docker inspect quizzical_panini > redisimage.log > > (YB: will paste the logfile at the end of this message) > > > > > > python manage.py shell > > import channels.layers > > channel_layer = channels.layers.get_channel_layer() > > from asgiref.sync import async_to_sync > > async_to_sync(channel_layer.send)('test_channel', {'type': 'hello'}) > > Error begins with: > > In [4]: async_to_sync(channel_layer.send)('test_channel', {'type': > 'hello'}) > > > --------------------------------------------------------------------------- > > ConnectionRefusedError Traceback (most recent call > last) > > <ipython-input-4-80e65666e9e2> in <module> > > ----> 1 async_to_sync(channel_layer.send)('test_channel', {'type': > 'hello'}) > > A lot of other details. Ends up with: > > 504 # Jump to any except clause below. > > --> 505 raise OSError(err, f'Connect call failed > {address}') > > 506 except (BlockingIOError, InterruptedError): > > 507 # socket is still registered, the callback will be > retried later > > > > ConnectionRefusedError: [Errno 10061] Connect call failed ('127.0.0.1', > 6379) > > > > Some version details: > > installing shell command: > > $ docker run redis --version > > Redis server v=5.0.3 sha=00000000:0 malloc=jemalloc-5.1.0 bits=64 > build=9f27eb593282148b > > $ pip install channels_redis > > *A lot of details: ends up with:* > > > Successfully installed channels-redis-2.3.3 > > $ python --version > > Python 3.7.1 > > (note that it is a 32 bit python while docker requires 64 bits. I assumed > it should not be the reason for the problems I do experience > > > > >>>>>>>> redisimage.log generated by docker inspect as shown above <<<<<< > > >>>>>>>> It is long. I can’t tell id/what is relevant > > [ > > { > > "Id": > "2bdabc272ec364e6b34a40e253d089e48b73d55cddcade1d51b70c202aad6479", > > "Created": "2019-01-15T14:02:36.679774957Z", > > "Path": "docker-entrypoint.sh", > > "Args": [ > > "redis-server" > > ], > > "State": { > > "Status": "running", > > "Running": true, > > "Paused": false, > > "Restarting": false, > > "OOMKilled": false, > > "Dead": false, > > "Pid": 8731, > > "ExitCode": 0, > > "Error": "", > > "StartedAt": "2019-01-15T14:02:37.086931139Z", > > "FinishedAt": "0001-01-01T00:00:00Z" > > }, > > "Image": > "sha256:5d2989ac9711b6c7a96dfca3110041d6259294f5ccd343491ecfffe3d14757cc", > > "ResolvConfPath": > "/mnt/sda1/var/lib/docker/containers/2bdabc272ec364e6b34a40e253d089e48b73d55cddcade1d51b70c202aad6479/resolv.conf", > > "HostnamePath": > "/mnt/sda1/var/lib/docker/containers/2bdabc272ec364e6b34a40e253d089e48b73d55cddcade1d51b70c202aad6479/hostname", > > "HostsPath": > "/mnt/sda1/var/lib/docker/containers/2bdabc272ec364e6b34a40e253d089e48b73d55cddcade1d51b70c202aad6479/hosts", > > "LogPath": > "/mnt/sda1/var/lib/docker/containers/2bdabc272ec364e6b34a40e253d089e48b73d55cddcade1d51b70c202aad6479/2bdabc272ec364e6b34a40e253d089e48b73d55cddcade1d51b70c202aad6479-json.log", > > "Name": "/quizzical_panini", > > "RestartCount": 0, > > "Driver": "overlay2", > > "Platform": "linux", > > "MountLabel": "", > > "ProcessLabel": "", > > "AppArmorProfile": "", > > "ExecIDs": null, > > "HostConfig": { > > "Binds": null, > > "ContainerIDFile": "", > > "LogConfig": { > > "Type": "json-file", > > "Config": {} > > }, > > "NetworkMode": "default", > > "PortBindings": { > > "6379/tcp": [ > > { > > "HostIp": "", > > "HostPort": "6379" > > } > > ] > > }, > > "RestartPolicy": { > > "Name": "no", > > "MaximumRetryCount": 0 > > }, > > "AutoRemove": false, > > "VolumeDriver": "", > > "VolumesFrom": null, > > "CapAdd": null, > > "CapDrop": null, > > "Dns": [], > > "DnsOptions": [], > > "DnsSearch": [], > > "ExtraHosts": null, > > "GroupAdd": null, > > "IpcMode": "shareable", > > "Cgroup": "", > > "Links": null, > > "OomScoreAdj": 0, > > "PidMode": "", > > "Privileged": false, > > "PublishAllPorts": false, > > "ReadonlyRootfs": false, > > "SecurityOpt": null, > > "UTSMode": "", > > "UsernsMode": "", > > "ShmSize": 67108864, > > "Runtime": "runc", > > "ConsoleSize": [ > > 30, > > 129 > > ], > > "Isolation": "", > > "CpuShares": 0, > > "Memory": 0, > > "NanoCpus": 0, > > "CgroupParent": "", > > "BlkioWeight": 0, > > "BlkioWeightDevice": [], > > "BlkioDeviceReadBps": null, > > "BlkioDeviceWriteBps": null, > > "BlkioDeviceReadIOps": null, > > "BlkioDeviceWriteIOps": null, > > "CpuPeriod": 0, > > "CpuQuota": 0, > > "CpuRealtimePeriod": 0, > > "CpuRealtimeRuntime": 0, > > "CpusetCpus": "", > > "CpusetMems": "", > > "Devices": [], > > "DeviceCgroupRules": null, > > "DiskQuota": 0, > > "KernelMemory": 0, > > "MemoryReservation": 0, > > "MemorySwap": 0, > > "MemorySwappiness": null, > > "OomKillDisable": false, > > "PidsLimit": 0, > > "Ulimits": null, > > "CpuCount": 0, > > "CpuPercent": 0, > > "IOMaximumIOps": 0, > > "IOMaximumBandwidth": 0, > > "MaskedPaths": [ > > "/proc/asound", > > "/proc/acpi", > > "/proc/kcore", > > "/proc/keys", > > "/proc/latency_stats", > > "/proc/timer_list", > > "/proc/timer_stats", > > "/proc/sched_debug", > > "/proc/scsi", > > "/sys/firmware" > > ], > > "ReadonlyPaths": [ > > "/proc/bus", > > "/proc/fs", > > "/proc/irq", > > "/proc/sys", > > "/proc/sysrq-trigger" > > ] > > }, > > "GraphDriver": { > > "Data": { > > "LowerDir": > "/mnt/sda1/var/lib/docker/overlay2/37ad581f24c8ec87f199192366c304f952ce27177477746a1d33875a1bd7d7c7-init/diff:/mnt/sda1/var/lib/docker/overlay2/c596b32c9a6bf4a75405f329338e49ff6167970587db8155633861147b0e6b8a/diff:/mnt/sda1/var/lib/docker/overlay2/6d489fac67dc1b566ea6afa79d458d979294142d7f35edd719081e5559d586c1/diff:/mnt/sda1/var/lib/docker/overlay2/5683f690ef322b4d9c02b1bec18880ddc76d48cfebb4a5454143c919dbd3cee8/diff:/mnt/sda1/var/lib/docker/overlay2/d8fd6e07474c264294c0064dda1af0f3c09d7ec35301b8eecacb4ee926a7215b/diff:/mnt/sda1/var/lib/docker/overlay2/cb37f96d8c4d6580faba935057636e928684d73ca58c53136a118918bddbb604/diff:/mnt/sda1/var/lib/docker/overlay2/df686dad04ba90e26a4bd48f64a9911f63547b205c7289d81fb55300aaacdbb4/diff", > > "MergedDir": > "/mnt/sda1/var/lib/docker/overlay2/37ad581f24c8ec87f199192366c304f952ce27177477746a1d33875a1bd7d7c7/merged", > > "UpperDir": > "/mnt/sda1/var/lib/docker/overlay2/37ad581f24c8ec87f199192366c304f952ce27177477746a1d33875a1bd7d7c7/diff", > > "WorkDir": > "/mnt/sda1/var/lib/docker/overlay2/37ad581f24c8ec87f199192366c304f952ce27177477746a1d33875a1bd7d7c7/work" > > }, > > "Name": "overlay2" > > }, > > "Mounts": [ > > { > > "Type": "volume", > > "Name": > "aae85a2f1e19aedc87713b76fca072247d04632ef0c17c44e7dd44ad4e46219c", > > "Source": > "/mnt/sda1/var/lib/docker/volumes/aae85a2f1e19aedc87713b76fca072247d04632ef0c17c44e7dd44ad4e46219c/_data", > > "Destination": "/data", > > "Driver": "local", > > "Mode": "", > > "RW": true, > > "Propagation": "" > > } > > ], > > "Config": { > > "Hostname": "2bdabc272ec3", > > "Domainname": "", > > "User": "", > > "AttachStdin": false, > > "AttachStdout": false, > > "AttachStderr": false, > > "ExposedPorts": { > > "6379/tcp": {} > > }, > > "Tty": false, > > "OpenStdin": false, > > "StdinOnce": false, > > "Env": [ > > > "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", > > "GOSU_VERSION=1.10", > > "REDIS_VERSION=5.0.3", > > "REDIS_DOWNLOAD_URL= > http://download.redis.io/releases/redis-5.0.3.tar.gz";, > > > "REDIS_DOWNLOAD_SHA=e290b4ddf817b26254a74d5d564095b11f9cd20d8f165459efa53eb63cd93e02" > > ], > > "Cmd": [ > > "redis-server" > > ], > > "ArgsEscaped": true, > > "Image": "redis", > > "Volumes": { > > "/data": {} > > }, > > "WorkingDir": "/data", > > "Entrypoint": [ > > "docker-entrypoint.sh" > > ], > > "OnBuild": null, > > "Labels": {} > > }, > > "NetworkSettings": { > > "Bridge": "", > > "SandboxID": > "d45841da711498d7de27f9d6050c9b5a873e527cb683075277a9fb8621c1dd30", > > "HairpinMode": false, > > "LinkLocalIPv6Address": "", > > "LinkLocalIPv6PrefixLen": 0, > > "Ports": { > > "6379/tcp": [ > > { > > "HostIp": "0.0.0.0", > > "HostPort": "6379" > > } > > ] > > }, > > "SandboxKey": "/var/run/docker/netns/d45841da7114", > > "SecondaryIPAddresses": null, > > "SecondaryIPv6Addresses": null, > > "EndpointID": > "11ad8c469ed5fc9d9ec1b796fe6853b91a8d61915a66f77763073f5f5535000f", > > "Gateway": "172.17.0.1", > > "GlobalIPv6Address": "", > > "GlobalIPv6PrefixLen": 0, > > "IPAddress": "172.17.0.2", > > "IPPrefixLen": 16, > > "IPv6Gateway": "", > > "MacAddress": "02:42:ac:11:00:02", > > "Networks": { > > "bridge": { > > "IPAMConfig": null, > > "Links": null, > > "Aliases": null, > > "NetworkID": > "354ba15e8a867d659da1a3093bd5ddb71df450b6dbb070edf492d980fdaf2c69", > > "EndpointID": > "11ad8c469ed5fc9d9ec1b796fe6853b91a8d61915a66f77763073f5f5535000f", > > "Gateway": "172.17.0.1", > > "IPAddress": "172.17.0.2", > > "IPPrefixLen": 16, > > "IPv6Gateway": "", > > "GlobalIPv6Address": "", > > "GlobalIPv6PrefixLen": 0, > > "MacAddress": "02:42:ac:11:00:02", > > "DriverOpts": null > > } > > } > > } > > } > > ] > > > > -- > > Yuval B > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-users+unsubscr...@googlegroups.com. > To post to this group, send email to django-users@googlegroups.com. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/CAD16PYQvZFt%3DT9Od96LthZD-8cCbfA%2Bf37mXt6icZwVbiiX9Ag%40mail.gmail.com > <https://groups.google.com/d/msgid/django-users/CAD16PYQvZFt%3DT9Od96LthZD-8cCbfA%2Bf37mXt6icZwVbiiX9Ag%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-users+unsubscr...@googlegroups.com. > To post to this group, send email to django-users@googlegroups.com. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/AM0P193MB030846511726FEDB5F8D35DD8C810%40AM0P193MB0308.EURP193.PROD.OUTLOOK.COM > <https://groups.google.com/d/msgid/django-users/AM0P193MB030846511726FEDB5F8D35DD8C810%40AM0P193MB0308.EURP193.PROD.OUTLOOK.COM?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Yuval B -- You received this message because you are subscribed to the Google Groups "Django users" group. 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