Permission of log files (linux)

[jukkahell]

Can we have something like this: winstonjs/winston#688
Would like to give group permission for the log files when created.

[mattberther]

I've submitted a PR at rogerc/file-stream-rotator#46 to incorporate this functionality. If it is accepted, I'll publish an updated version of the transport with the requested functionality.

[mattberther]

Added in 9770c46 and published to npm as winston-daily-rotate-file@3.4.0. Usage is documented in README, and similar to winston's FileTransport.

[jukkahell]

Thanks a lot for the quick fix! Can you update index.d.ts as well :)

[mattberther]

Added in b71d68a.

Sorry, but I dont use ts and am not familiar with how these defs work. Not sure if there's anything more that needs to happen, or if ts just uses the github repo.

[jukkahell]

I believe this is good now. Thanks again!

[jukkahell]

One more thing, can you release the new version to npm? :)

[mattberther]

Published as winston-daily-rotate-file@3.4.1.

[parthgoyal]

Hi Matt,

I am using the "winston-daily-rotate-file": "3.9.0" version and encountered problem related to this issue.

Problem Statement:
I want to change the permissions of the log file that is created by winston on Windows as well as Linux. For that I have used the following transport:

var transport = new (transports.DailyRotateFile)({
filename: path.join(PATH , 'logGUI_%DATE%.log'),
datePattern: 'YYYYMMDD',
zippedArchive: false,
auditFile : LOGMETA_FILE,
maxFiles: 5,
options: {
mode: 0o666,
flags: 'a'
}
});

But the permissions of logfile did not change on both windows and Linux.
Please let me know how to change permission of winston logfile (Actually i want to give full permission to all the users and groups in both windows and linux. I got error whenever the same logfile access by different users for writing (at different point of time)

Thanks

[mattberther]

What am I missing? The following code seems to work as expected. Do you have permission issues elsewhere on the filesystem?

var transport = new (winston.transports.DailyRotateFile)({
    filename: './logs/application-%DATE%',
    options: { flags: 'a', mode: 0o755 }
});

var logger = winston.createLogger({
    transports: [
        transport
    ]
});

logger.info("Hello world!");

Folder listing

$ ls -al logs
total 8
drwxr-xr-x   3 user  staff   96 Oct 29 18:26 .
drwxr-xr-x  19 user  staff  608 Oct 29 18:26 ..
-rwxr-xr-x   1 user  staff   42 Oct 29 18:26 application-2019-10-29

[parthgoyal]

Case 1
Default (no options)

logs# ls -ltr
total 12
-rw-r--r-- 1 root root 301 Oct 31 15:27 guiLogMeta
-rw-r--r-- 1 root root 6513 Oct 31 15:27 logGUI_20191031.log

Case 2
options: {
flags: 'a',
mode: 0o666
}

logs# ls -ltr
total 12
-rw-r--r-- 1 root root 301 Oct 31 15:19 guiLogMeta
-rw-r--r-- 1 root root 6513 Oct 31 15:19 logGUI_20191031.log

Case 3
options: {
flags: 'a',
mode: 0o755
}

logs# ls -ltr
total 16
-rw-r--r-- 1 root root 301 Oct 31 15:22 guiLogMeta
-rwxr-xr-x 1 root root 10137 Oct 31 15:22 logGUI_20191031.log

Case 4
options: {
flags: 'a',
mode: 0o777
}

logs# ls -ltr
total 20
-rw-r--r-- 1 root root 301 Oct 31 15:24 guiLogMeta
-rwxr-xr-x 1 root root 12867 Oct 31 15:24 logGUI_20191031.log

In any case, I did not get the write permissions for other users. Even in windows, I did not get write permissions for others users.

Please let me know if this is expected behaviour or it is bug or am I missing something

Thanks

[parthgoyal]

And What about auditFile ? How to change the auditFile permissions?

[mattberther]

@parthgoyal If the mode is not set properly on a new file being created, there must be a misconfiguration in your node or system environment. The transport just passes the options hash through to fs.createWriteStream. Can you tell me if you see similar results from the following?

var fs = require('fs');

var stream = fs.createWriteStream('hello.txt', { mode: 0o777 });
stream.write('test');
stream.end();

At this time it is not possible to change auditFile permissions.