Process list isn't showing up while running from Docker

[afunworm]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Start up Docker glances web server:

docker run \
    -d \
    --restart always \
    --name glances \
    -p 61208:61208 \
    -p 61209:61209 \
    -v /var/run/docker.sock:/var/run/docker.sock:ro \
    -e GLANCES_OPT="-w" \
    docker.io/nicolargo/glances:ubuntu-latest-full

2. Visit the website at 127.0.0.1:61208.

Expected behavior
See a list of running processes, like shown here:

Screenshots

Environement (please complete the following information)

• Operating System (lsb_release -a or OS name/version): No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 22.04.3 LTS Release: 22.04 Codename: jammy
• Glances & psutil versions: Glances v3.4.0.3 with PsUtil v5.9.7 Log file: /tmp/glances-root.log
• How do you install Glances (Pypi package, script, package manager, source): Docker
• Glances test (only available with Glances 3.1.7 or higher):

===============================================================================
Glances 3.4.0.3 (/app/glances/__init__.py)
Python 3.11.4 (/venv/bin/python3)
PsUtil 5.9.7 (/venv/lib/python3.11/site-packages/psutil/__init__.py)
===============================================================================
alert         [OK]    0.00001s
[]
amps          [OK]    0.00007s key=name
[{'count': 0,
 'countmax': None,
 'countmin': 1.0,
 'key': 'name',
 'name': 'Dropbox',
 'refresh': 3.0,
 'regex': True,
 'result': None,
 'timer': 4.267005681991577}, ...]
cloud         [NA]
connections   [NA]
containers    [OK]    0.16249s key=name
[{'Command': ['/bin/sh', '-c', '/venv/bin/python3 -m glances $GLANCES_OPT'],
 'Created': '2024-01-13T21:13:18.74463863Z',
 'Id': 'b257931089778efbf80623cb2c6935a24aef819e3b8c16472f6d38e05db5a08d',
 'Image': ['nicolargo/glances:ubuntu-latest-full'],
 'Status': 'running',
 'Uptime': '9 mins',
 'cpu_percent': 1.9485408560311286,
 'engine': 'docker',
 'io_r': None,
 'io_w': None,
 'key': 'name',
 'memory_usage': 108371968,
 'name': 'glances',
 'network_rx': None,
 'network_tx': None}, ...]
core          [OK]    0.00033s
{'log': 20, 'phys': 20}
cpu           [OK]    0.00017s
{'cpucore': 20,
'ctx_switches': 46536,
'guest': 0.0,
'guest_nice': 0.0,
'idle': 98.6,
'interrupts': 33833,
'iowait': 0.0,
'irq': 0.0,
'nice': 0.0,
'soft_interrupts': 8137,
'softirq': 0.1,
'steal': 0.0,
'syscalls': 0,
'system': 0.4,
'time_since_update': 2.165776252746582,
'total': 6.1,
'user': 0.9}
diskio        [OK]    0.00042s key=disk_name
[{'disk_name': 'nbd0',
 'key': 'disk_name',
 'read_bytes': 0,
 'read_count': 0,
 'time_since_update': 2.3943209648132324,
 'write_bytes': 0,
 'write_count': 0}, ...]
folders       [OK]    0.00001s
[]
fs            [OK]    0.00021s key=mnt_point
[{'device_name': '/dev/vda1',
 'free': 57739329536,
 'fs_type': 'ext4',
 'key': 'mnt_point',
 'mnt_point': '/etc/hosts',
 'percent': 27.7,
 'size': 84223205376,
 'used': 22172184576}, ...]
gpu           [OK]    0.00001s
[]
help          [OK]    0.00000s
None
ip            [OK]    0.00014s
{'address': '***',
'gateway': '***',
'mask': '***',
'mask_cidr': '***',
'public_address': '***',
'public_info_human': '***'}
irq           [NA]
load          [OK]    0.00002s
{'cpucore': 20, 'min1': 0.37548828125, 'min15': 0.13671875, 'min5': 0.22314453125}
mem           [OK]    0.00008s
{'active': 1638809600,
'available': 6237151232,
'buffers': 210563072,
'cached': 3575840768,
'free': 6237151232,
'inactive': 4639215616,
'percent': 40.2,
'shared': 442335232,
'total': 10433273856,
'used': 4196122624}
memswap       [OK]    0.00008s
{'free': 2147479552,
'percent': 0.0,
'sin': 0,
'sout': 0,
'time_since_update': 2.166696548461914,
'total': 2147479552,
'used': 0}
network       [OK]    0.00020s key=interface_name
[{'alias': None,
 'cumulative_cx': 26200,
 'cumulative_rx': 13100,
 'cumulative_tx': 13100,
 'cx': 200,
 'interface_name': 'lo',
 'is_up': True,
 'key': 'interface_name',
 'rx': 100,
 'speed': 0,
 'time_since_update': 2.165239095687866,
 'tx': 100}, ...]
now           [OK]    0.00001s
'2024-01-14 01:00:30 UTC'
percpu        [OK]    0.00027s key=cpu_number
[{'cpu_number': 0,
 'guest': 0.0,
 'guest_nice': 0.0,
 'idle': 98.2,
 'iowait': 0.0,
 'irq': 0.0,
 'key': 'cpu_number',
 'nice': 0.0,
 'softirq': 0.2,
 'steal': 0.0,
 'system': 0.7,
 'total': 1.8,
 'user': 0.9}, ...]
ports         [OK]    0.00000s
[{'description': 'DefaultGateway',
 'host': '172.17.0.1',
 'indice': 'port_0',
 'port': 0,
 'refresh': 30,
 'rtt_warning': None,
 'status': None,
 'timeout': 3}]
processcount  [OK]    0.00064s
{'pid_max': 0, 'running': 1, 'sleeping': 4, 'thread': 79, 'total': 5}
processlist   [OK]    0.00001s key=pid
[{'cmdline': ['/venv/bin/python3', '-m', 'glances', '--issue'],
 'cpu_percent': 7.1,
 'cpu_times': pcputimes(user=2.27, system=0.02, children_user=0.0, children_system=0.0, iowait=0.0),
 'gids': pgids(real=0, effective=0, saved=0),
 'io_counters': [0, 8192, 0, 8192, 1],
 'key': 'pid',
 'memory_info': pmem(rss=55463936, vms=3074678784, shared=13762560, text=2834432, lib=0, data=376250368, dirty=0),
 'memory_percent': 0.5316062509765679,
 'name': 'python3',
 'nice': 0,
 'num_threads': 38,
 'pid': 205,
 'status': 'R',
 'time_since_update': 2.3996689319610596,
 'username': 'root'}, ...]
psutilversion [OK]    0.00001s
(5, 9, 7)
quicklook     [OK]    0.00015s
{'cpu': 6.1,
'cpu_hz': 0.0,
'cpu_hz_current': 2918400000.000001,
'cpu_name': '13th Gen Intel(R) Core(TM) i7-13700H',
'mem': 40.2,
'percpu': [{...}, {...}, {...}, {...}, {...}, {...}, {...}, {...}, {...}, {...}, {...}, {...}, {...}, {...}, {...},
           {...}, {...}, {...}, {...}, {...}],
'swap': 0.0}
raid          [NA]
sensors       [OK]    0.00026s
[]
smart         [NA]
system        [OK]    0.00000s
{'hostname': 'b25793108977',
'hr_name': 'Ubuntu 23.04 64bit',
'linux_distro': 'Ubuntu 23.04',
'os_name': 'Linux',
'os_version': '6.5.11-linuxkit',
'platform': '64bit'}
uptime        [OK]    0.00006s
{'seconds': 18344}
wifi          [NA]
===============================================================================
Total time to update all stats: 0.16713s
===============================================================================

[nicolargo]

By default, Docker denies access to the host process. As said in the documentation, you have to add the --pid host option to your command line.

[afunworm]

Ah. I missed that. That was my bad. It works perfectly now.