Reading this documentation
https://sdk.operatorframework.io/docs/building-operators/helm/tutorial/#overview
I cannot understand how can i achieve this goal with a helm-based operator.
I have only found solution with ansible-based and Go-based operators.
Related
I'm trying to use Kubernetes Probes from Spring Boot Actuator, but it isn't working.
I have set the following in application.properties:
management.endpoints.web.path-mapping.health=probes
management.endpoint.health.group.ping.include=ping
management.endpoint.health.group.liveness.include=livenessState
management.endpoint.health.group.readiness.include=readinessState
The groups are listed as expected:
$ curl http://localhost:8080/actuator/probes
{"status":"UP","groups":["liveness","ping","readiness"]}
And ping works as expected:
$ curl http://localhost:8080/actuator/probes/ping
{"status":"UP"}
However both liveness and readiness return Status Code: 404 and Content-Length: 0.
I'm using spring-boot-starter-parent version 2.3.1.RELEASE.
The probes I want are documented in the list of Auto-configured HealthIndicators.
The feature is also described at: https://spring.io/blog/2020/03/25/liveness-and-readiness-probes-with-spring-boot.
I've tried several spellings of livenessState, inluding livenessProbe (which is in the blog post), with no effect.
Here's a related answer, but it doesn't directly address my problem: Kubernetes - Liveness and Readiness probe implementation
What bit of configuration am I missing?
Update
There is some verbiage in the linked sites that indicates a potential clue...
If deployed in a Kubernetes environment, actuator will gather the "Liveness" and "Readiness" information...
Maybe this indicates that the probes only work if deployed in a Kubernetes environment -- although I don't know how that would be detected or why that would be the case.
Adding following configurations worked for me (by trial and error)
management.health.livenessstate.enabled=true
management.health.readinessstate.enabled=true
If you are running locally, you will also need to add
management.endpoint.health.probes.enabled=true
I am using spring-boot-starter-parent version 2.3.2.RELEASE.
It is correct to use include=livenessState or include=readinessState. The example here (which shows include=livenessProbe) is wrong.
I identified the correct name by trial-and-error -- checking the result while running in a Kubernetes environment.
management.endpoint.health.group.exploratory.include=livenessState,readinessState,ping
management.endpoint.health.group.exploratory.show-details=always
By some magic, and for no obvious reason, these indicators aren't available when you do a standard local run -- and you get 404 for health groups that have no available includes.
For reference:
Auto-configured HealthIndicators (list)
ApplicationAvailabilityBean which is the source of truth for liveness/readiness
I'm trying to use the Airflow SFTPHook by passing in a ssh_conn_id and I'm getting an error:
No hostkey for host myhostname found.
Using the SFTPOperator with the same ssh_conn_id however is working fine. How can I resolve this error?
Just had this issue, the simple trick is to keep your SSH connector inside airflow and to add the following in the "Extra" field :
{"no_host_key_check": true}
Hope it helps !
Edit : Indeed, it allows the man-in-the-middle attack, so even if it helps temporarily, you should get the ssh fingerprint and allow it
The SFTPOperators uses SSHHook. Hence, you should use SSHHook instead.
Using this formula:
https://github.com/bechtoldt/saltstack-prometheus-formula.git
for provisioning prometheus, I can't achieve convergence.
Fails pretty early on:
# salt prometheus-master state.apply test=True
prometheus-master:
Data failed to compile:
----------
No matching sls found for 'prometheus' in env 'base'
ERROR: Minions returned with non-zero exit code
Have 'prometheus' defined in bot states & pillars top.sls.
bechtoldt's formula requires additional code taken from his GitHub repository to work, formhelper, https://github.com/bechtoldt/salt-modules/blob/master/_modules/formhelper.py in https://github.com/bechtoldt/salt-modules which is his special way to manage pillars that gives him more flexibility to manage versions.
It is certainly not as straightforward as pillars are on their own, and you will need to understand that to operate the prometheus formula, so unfortunately it is not going to work out of the box.
I need authentication to use internet, say these are my variables:
Proxy : 1ncproxy1
Port : 80
Loggin : MyLoGiN
Pass : MyPaSs
How can I install a package in R and its addon packages ?
Such that the following would work:
install.packages("TSA", dependencies=TRUE)
Without our having internet connection failutes?
I tried this:
Sys.setenv("ftp_proxy" = "1ncproxy1","ftp_proxy_user"="MyLoGiN","ftp_proxy_password"="MyPaSs")#Port = 80
ButI get :
Warning: unable to access index for repository http://cran.ma.imperial.ac.uk/src/contrib
# or
cannot open: HTTP status was '407 Proxy Authentication Required'
Many thanks,
You are probably on Windows, so I would advice you to check the 'R on Windows FAQ' that came with your installation, particularly Question 2.19: The Internet download functions fail. You may need to restart R with the --internet2 option (IIRC) for the proxy settings to come into effect.
I always found this very cumbersome. An alternative is to install a proxy-aware webdownloader as eg wget (as a windows binary) where you set the proxy options in a file in your home directory. This is all from memory, I think the last time I was faced with such a proxy was in 2005 so YMMV.
As #juba states, I think you want to set the http_proxy. From ?download.file:
Usernames and passwords can be set for HTTP proxy transfers via
environment variable http_proxy_user in the form user:passwd.
Alternatively, http_proxy can be of the form
"http://user:pass#proxy.dom.com:8080/"
So, try: Sys.setenv(http_proxy="http://MyLoGiN:MyPaSs#1ncproxy1:80")
Be aware though:
These environment variables must be set before the download code is
first used: they cannot be altered later by calling Sys.setenv.
So you are best off calling it in your .Rprofile
+1 for Juba, above. This worked for me:
$ export http_proxy=http://username:password#the-proxy.mycompany.com:80
$ R
> install.packages("quantmod")
I tried to install swirl package, and had the same problem - proxy with authorisation.
After some experiments i found decision.
May be my answer will help for anybody.
On Windows 7 :
set 1 or more (if ou need) env variables http_proxy (https_proxy and ftp_proxy if you need) (If you dont know how - read there http://www.computerhope.com/issues/ch000549.htm )
Its look like that
env variables for proxy
format http_proxy="http://Proxyusername:ProxyUserPassw#proxyServName:ProxyPort"
Use '#' instead of %40
In RStudio Tools->Global Options->Packages release check box "Use Internet Explorer library /proxy for HTTP"
As Jeff Taylor wrote, R can indirectly make use of a proxy server. You need to specify the proxy server for both, http and https protocols, as follows:
$ export http_proxy=http://user:pass#proxy_server:port
$ export https_proxy=http://user:pass#proxy_server:port
$ R
> install.packages("<package_name>")
I just tested this solution and it works like a charm. The answer from Jeff was correct but unfortunatelly for most cases incomplete, as most of the servers are nowadays accesible over https.
I need authentication to use internet, say these are my variables:
Proxy : 1ncproxy1
Port : 80
Loggin : MyLoGiN
Pass : MyPaSs
How can I install a package in R and its addon packages ?
Such that the following would work:
install.packages("TSA", dependencies=TRUE)
Without our having internet connection failutes?
I tried this:
Sys.setenv("ftp_proxy" = "1ncproxy1","ftp_proxy_user"="MyLoGiN","ftp_proxy_password"="MyPaSs")#Port = 80
ButI get :
Warning: unable to access index for repository http://cran.ma.imperial.ac.uk/src/contrib
# or
cannot open: HTTP status was '407 Proxy Authentication Required'
Many thanks,
You are probably on Windows, so I would advice you to check the 'R on Windows FAQ' that came with your installation, particularly Question 2.19: The Internet download functions fail. You may need to restart R with the --internet2 option (IIRC) for the proxy settings to come into effect.
I always found this very cumbersome. An alternative is to install a proxy-aware webdownloader as eg wget (as a windows binary) where you set the proxy options in a file in your home directory. This is all from memory, I think the last time I was faced with such a proxy was in 2005 so YMMV.
As #juba states, I think you want to set the http_proxy. From ?download.file:
Usernames and passwords can be set for HTTP proxy transfers via
environment variable http_proxy_user in the form user:passwd.
Alternatively, http_proxy can be of the form
"http://user:pass#proxy.dom.com:8080/"
So, try: Sys.setenv(http_proxy="http://MyLoGiN:MyPaSs#1ncproxy1:80")
Be aware though:
These environment variables must be set before the download code is
first used: they cannot be altered later by calling Sys.setenv.
So you are best off calling it in your .Rprofile
+1 for Juba, above. This worked for me:
$ export http_proxy=http://username:password#the-proxy.mycompany.com:80
$ R
> install.packages("quantmod")
I tried to install swirl package, and had the same problem - proxy with authorisation.
After some experiments i found decision.
May be my answer will help for anybody.
On Windows 7 :
set 1 or more (if ou need) env variables http_proxy (https_proxy and ftp_proxy if you need) (If you dont know how - read there http://www.computerhope.com/issues/ch000549.htm )
Its look like that
env variables for proxy
format http_proxy="http://Proxyusername:ProxyUserPassw#proxyServName:ProxyPort"
Use '#' instead of %40
In RStudio Tools->Global Options->Packages release check box "Use Internet Explorer library /proxy for HTTP"
As Jeff Taylor wrote, R can indirectly make use of a proxy server. You need to specify the proxy server for both, http and https protocols, as follows:
$ export http_proxy=http://user:pass#proxy_server:port
$ export https_proxy=http://user:pass#proxy_server:port
$ R
> install.packages("<package_name>")
I just tested this solution and it works like a charm. The answer from Jeff was correct but unfortunatelly for most cases incomplete, as most of the servers are nowadays accesible over https.