Portainer Basic
Portainer enables centralized configuration, management and security of Kubernetes and Docker environments, allowing you to deliver ‘Containers-as-a-Service’ to your users quickly, easily and securely.
TODO: Rancher OS Basic
Rancher OS Basic
Rancher 2 exclusively deploys and manages Kubernetes clusters running anywhere, on any provider.
References
Commands and Options
Set up Docker on FreeNAS 11.2 - Part 1 - RancherOS VM
Setting up Docker on FreeNAS 11.2
Clear checksum error in FreeNAS/TrueNAS
Clear checksum error in FreeNAS/TrueNAS
Identify error
Errors can be found in TrueNAS Storage section in web page, or use shell in web page, run zpool status -x command.
Sample error can be fond in following screen. There are two pools got error. The pool0 got two hard disks, first one got 154 checksum errors, second one got one data error.
pool: pool0
state: ONLINE
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P
scan: scrub repaired 0B in 00:00:02 with 0 errors on Sat Oct 2 17:39:46 2021
config:
NAME STATE READ WRITE CKSUM
pool0 ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
gptid/bf410fcf-2209-11ec-b8aa-001132dbfc9c ONLINE 0 0 154
gptid/bfcc498a-2209-11ec-b8aa-001132dbfc9c ONLINE 0 0 0
errors: No known data errors
pool: pool01
state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A
config:
NAME STATE READ WRITE CKSUM
pool01 ONLINE 0 0 0
gptid/75827da1-207a-11ec-afcf-005056a390b2 ONLINE 0 0 1
errors: List of errors unavailable: permission denied
errors: 1 data errors, use '-v' for a listFor second error, impacted file can be found using zpool status -v command
root@truenas[~]# zpool status -v pool01
pool: pool01
state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A
scan: scrub repaired 0B in 00:23:22 with 1 errors on Sat Oct 2 21:53:02 2021
config:
NAME STATE READ WRITE CKSUM
pool01 ONLINE 0 0 0
gptid/75827da1-207a-11ec-afcf-005056a390b2 ONLINE 0 0 1
errors: Permanent errors have been detected in the following files:
/mnt/pool01/download/file.1
root@truenas[~]#Clear error
Run following command to clear the error
zpool clear <pool_name>For the pool has data error, which has any file impacted. Delete or overwrite the file.
Then scrub the pool
zpool scrub <pool_name>Replace disk
To replace disk, run following command, c0t0d2 is a new disk to replace c0t0d0
zpool replace c0t0d0 c0t0d2If the disk replaced at same location, then run following command
zpool replace c0t0d0Living a Happy Life
Living a Happy Life
Be happy, there are many ways to satisfy yourself, just listed them below.
Be positive
Things always have two views, positive and negative, thinking positively.
Target on small achievement
Big achievements accompany too many failures, they are always bulit up by many small achievements.
Find your work–life balance
Work for others is called work, work for yourself is called contribute.
Be creative
Lesser rules applied.
Accept imperfection
Nothing is the best.
Do what you love to do
Building hobbies
Spend wisely
Less worry later
Live in the moment
Don't worry too much about future
Helping others
Just say hi to others during exercise can help yourself forget tiredness.
Listening music and watching video
Bring you out of depression.
Be yourself
Don't always follow
Hang out with happy people
If impossible, go out and watching others
Spend time in nature
To forget whatever happened before.
Reminisce over happy memories
Don't try to recall sad things although they can't be forgotten.
Don't hope too much
Don't believe people said, just listen.
References
Install *Synology* NAS managed *Let’s Encrypt Certificate* in *NGINX*
Install Synology NAS managed Let's Encrypt Certificate in NGINX
Certificate Management
Synology NAS can be used for certificate management, and Let's Encrypt certificate can be exported as ZIP file used for NGINX HTTPS configuration.
- Go to Control Panel -> Security -> Certificate
- Select certificate to be exported
- Select Export Certificate from right click menu
- Save exported file
For existing certificates, can use right click -> renew option to renew.
Note: All domain in the certificates, must be resolved to current Synology NAS at port 80 and port 443, otherwise, certificate generation will be failed.
In downloaded ZIP file, following files can be found.
certs.pemchain.pemprivkey.pem
NGINX configuration
-
Concatenate
cert.pemandchain.pemtocert-with-chain.pem(orfullchain.pem) file -
Copy
cert-with-chain.pemandprivkey.peminto NGNIXconf.dfolder -
Verify NGINX configuration as below
ssl_certificate conf.d/cert-with-chain.pem;
ssl_certificate_key conf.d/privkey.pem;- Restart NGINX
Verification
Browser
The date of issue for new certificate should be displayed in certificate information window.
Command line
Following command can be used for verification
openssl s_client -connect <domain_name>:<port>If got following error, concatenate chain.pem into cert.pem, because the full chain is required.
verify error:num=20:unable to get local issuer certificate
verify error:num=21:unable to verify the first certificate