I am trying deploy and verify a contract using brownie on avalanche testnet.
The contract deploys and verifies fine on kovan. It deploys on avalanche testnet but I cannot get it verified.
The default brownie does not come with an explorer for avax testnet(kept getting explorer error) so I tried to add it.
I have tried variations of the testnet.snowtrace.io and they all give connection error except:
https://testnet.snowtrace.io/api - gives valueerror: error
I am using export SNOWTRACE_TOKEN= as per the documentation for avalanche and obtained an API key from https://snowtrace.io
Any idea IF and how this can be accomplished?
this does not seem to work on avax-test, using manual workaround so far ...
https://github.com/eth-brownie/brownie/issues/1417
Actually by default brownie "avax-test" network doesn't have set explorer field, So we have to set it manually by running below command,
brownie networks modify avax-test explorer=https://api-testnet.snowtrace.io/api
And you will able to verify contract.
Don't forget to add env variable,
SNOWTRACE_TOKEN=YOUR_TOKEN
Related
I am working in a GCP lab (Securing Google Cloud with CFT Scorecard). All instructions for the lab are given.
First I have to run the following two commands to set environment variables
export GOOGLE_PROJECT=$DEVSHELL_PROJECT_ID
export CAI_BUCKET_NAME=cai-$GOOGLE_PROJECT
In the second command given above I don't know what to replace with my own credentials? May be that is the reason I am getting error.
Now I have to enable the "cloudasset.googleapis.com" gcloud service. For this they gave the following command.
gcloud services enable cloudasset.googleapis.com \
--project $GOOGLE_PROJECT
Error for this is given in the screeshot attached herewith:
Error in the serviec enabling command
Next step is to clone the policy: The given command for that is:
git clone https://github.com/forseti-security/policy-library.git
After that they said: "You realize Policy Library enforces policies that are located in the policy-library/policies/constraints folder, in which case you can copy a sample policy from the samples directory into the constraints directory".
and gave this command:
cp policy-library/samples/storage_blacklist_public.yaml policy-library/policies/constraints/
On running this command I received this:
error on running the directory command
Finally they said "Create the bucket that will hold the data that Cloud Asset Inventory (CAI) will export" and gave the following command:
gsutil mb -l us-central1 -p $GOOGLE_PROJECT gs://$CAI_BUCKET_NAME
I am confused in where to replace my own credentials like in the place of project_Id I wrote my own project id.
Also I don't know these errors are ocurring. Kindly help me.
I'm unable to access the tutorial.
What happens if you run the following:
echo ${DEVSHELL_PROJECT_ID}
I suspect you'll get an empty result because I think this environment variable isn't actually set.
I think it should be:
echo ${DEVSHELL_GCLOUD_CONFIG}
Does that return a result?
If so, perhaps try using that variable instead:
export GOOGLE_PROJECT=${DEVSHELL_GCLOUD_CONFIG}
export CAI_BUCKET_NAME=cai-${GOOGLE_PROJECT}
It's not entirely clear to me why this tutorial is using this approach but, if the above works, it may get you further along.
We're you asked to create a Google Cloud Platform project?
As per the shared error, this seems to be because your env variable GOOGLE_PROJECT is not set. You can verify it by using echo $GOOGLE_PROJECT and seeing whether it returns the project ID or not. You could also use echo $DEVSHELL_PROJECT_ID. If that returns the project ID and the former doesn't, it means that you didn't export the variable as stated at the beginning.
If the problem is that GOOGLE_PROJECT doesn't have any value, there are different approaches on how to solve it.
Set the env variable as you explained at the beginning. Obviously this will only work if the variable DEVSHELL_PROJECT_ID is also set.
export GOOGLE_PROJECT=$DEVSHELL_PROJECT_ID
Manually set the project ID into that variable. This is far from ideal because in Qwiklabs they create a new temporal project on every lab, so this would've only worked if you were still on that project. The project ID can be seen on both of your shared screenshots.
export GOOGLE_PROJECT=qwiklabs-gcp-03-c6e1787dc09e
Avoid using the argument --project. According to the documentation, the aforementioned argument is optional and if none is used the command will take the one by default, which will be on the configuration settings. You can get the current project by using this:
gcloud config get-value project
If the previous command matches the project ID you want to use, you can simply issue the following command:
gcloud services enable cloudasset.googleapis.com
Notice that the project ID is not being explicitly mentioned using --project.
Regarding your issue with the GitHub file, I have checked the repository and the file storage_blacklist_public.yaml doesn't seem to be in the directory policy-library/samples. There seems to be a trace that it was once there, but it isn't anymore, they should probably update the lab as it isn't anymore.
About your credentials confusion, you don't have to use your own project ID, just the one given on your lab. If I recall properly all the needed data should be on the left side of the lab. Still, you shouldn't need to authenticate in a normal situation as you are already logged in your temporal project if you are accessing it form the Cloud Shell, which is where you should be doing all this.
Adding this for the later versions
in the gcloud shell you can set a temp variable for the current project id with
PROJECT_ID="$(gcloud config get-value project)"
then use like
--project ${PROJECT_ID}
Is there a build/compile flag for kubernetes v1.14 to only build for signature verification and not signing? I have an embedded system acting as a kubelet that justs needs to verify a signature. I'm getting error saying, kubelet[289]: remote_image.go:113] PullImage "quay.registry/reponame/podman-test:latest" from image service failed: rpc error: code = Unknown desc = Source image rejected: Invalid crypto engine which indicates that kubernetes is missing external dependencies for signing.
I've tried adding:
-tags "containers_image_openpgp " similar to related issue here:
https://github.com/containers/skopeo/issues/660
My current build command is
make generated_files KUBE_BUILD_PLATFORMS="${HOST_GOOS}/${BUILD_GOARCH}"; make cross KUBE_BUILD_PLATFORMS=${GOOS}/${GOARCH}
The error is coming from GPG. Make sure your device has gpg or gpgv command in PATH and that signature verification with gpg command works.
gpgv is a stripped-down verification-only command that you could use, and Kubernetes supports it. Also, GPG has a ton of compile-time parameters to enable/disable parts of it, you can strip it down once you get it working.
If you find GPG too bloated or have a hard time getting it to work, you can try using https://sequoia-pgp.org/ which compiles to a statically linked binary without external dependencies. You will have to translate calls to gpg command into calls to sqv, but their CLI interfaces are really similar so it should be easy to do with a shell script, or whatever language your embedded platform supports.
BitBake fails for me because it can't find https://www.example.com.
My computer is an x86-64 running native Xubuntu 18.04. Network connection is via DSL. I'm using the latest versions of the OpenEmbedded/Yocto toolchain.
This is the response I get when I run BitBake:
$ bitbake -k core-image-sato
WARNING: Host distribution "ubuntu-18.04" has not been validated with this version of the build system; you may possibly experience unexpected failures. It is recommended that you use a tested distribution.
ERROR: OE-core's config sanity checker detected a potential misconfiguration.
Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
Following is the list of potential problems / advisories:
Fetcher failure for URL: 'https://www.example.com/'. URL https://www.example.com/ doesn't work.
Please ensure your host's network is configured correctly,
or set BB_NO_NETWORK = "1" to disable network access if
all required sources are on local disk.
Summary: There was 1 WARNING message shown.
Summary: There was 1 ERROR message shown, returning a non-zero exit code.
The networking issue, the reason why I can't access www.example.com, is a question for the SuperUser forum. My question here is, why does BitBake rely on the existence of www.example.com? What is it about that website that is so vital to BitBake's operation? Why does BitBake post an Error if it cannot find https://www.example.com?
At this time, I don't wish to set BB_NO_NETWORK = "1". I would rather understand and resolve the root cause of the problem first.
Modifying poky.conf didn't work for me (and from what I read, modifying anything under Poky is a no-no for a long term solution).
Modifying /conf/local.conf was the only solution that worked for me. Simply add one of the two options:
#check connectivity using google
CONNECTIVITY_CHECK_URIS = "https://www.google.com/"
#skip connectivity checks
CONNECTIVITY_CHECK_URIS = ""
This solution was originally found here.
For me, this appears to be a problem with my ISP (CenturyLink) not correctly resolving www.example.com. If I try to navigate to https://www.example.com in the browser address bar I just get taken to the ISP's "this is not a valid address" page.
Technically speaking, this isn't supposed to happen, but for whatever reason it does. I was able to work around this temporarily by modifying the CONNECTIVITY_CHECK_URIS in poky/meta-poky/conf/distro/poky.conf to something that actually resolves:
# The CONNECTIVITY_CHECK_URI's are used to test whether we can succesfully
# fetch from the network (and warn you if not). To disable the test set
# the variable to be empty.
# Git example url: git://git.yoctoproject.org/yocto-firewall-test;protocol=git;rev=master
CONNECTIVITY_CHECK_URIS ?= "https://www.google.com/"
See this commit for more insight and discussion on the addition of the www.example.com check. Not sure what the best long-term fix is, but the change above allowed me to build successfully.
If you want to resolve this issue without modifying poky.conf or local.conf or any of the files for that matter, just do:
$touch conf/sanity.conf
It is clearly written in meta/conf/sanity.conf that:
Expert users can confirm their sanity with "touch conf/sanity.conf"
If you don't want to execute this command on every session or build, you can comment out the line INHERIT += "sanity" from meta/conf/sanity.conf, so the file looks something like this:
Had same issue with Bell ISP when accessing example.com gave DNS error.
Solved by switching ISP's DNS IP to Google's DNS (to avoid making changes to configs):
https://developers.google.com/speed/public-dns/docs/using
I have fabric composer 0.72 installed on my mac, and I was able to follow this thread to get it connected to my Blockchain (v.61 of Fabric) on Bluemix.
fabric-composer-integration-with-bluemix-blockchain-service
Now I am trying to build an ubuntu (16.04) docker container and run composer-rest-server there. When I try to connect to my blockchain service from my docker container (using the same id, WebAppAdmin, that I used on my mac) I get an error:
Discovering types from business network definition ...
Connection fails: Error: Identity or token does not match.
It will be retried for the next request.
{ Error: Identity or token does not match.
at /home/composer/.nvm/versions/node/v6.10.3/lib/node_modules /composer-rest-server/node_modules/grpc/src/node/src/client.js:417:17 code: 2, metadata: Metadata { _internal_repr: {} } }
I tried copying the cert from my mac to my docker container:
/home/composer/.composer-credentials/member.WebAppAdmin
but when I did that I got a different error that says "signature does not verify". I did some additional testing, and I discovered that if I used an id that I had not previously used with composer (i.e. user_type1_0) then I could connect, and I could see a new cert in my .composer-credentials directory.
I tried deleting that container and building a new one (I dorked something else up) I could not use that same userid again.
Does anybody know how security and these certs are supposed to work? It would seem as though something to do with certificate generation/validation is tied to the client (i.e. hardware address), such that if I try to re-use an id on a different machine, the certs or keys or something don't match. I have a way to make things work, but it doesn't seem like it's the right way if I can't use the same id from different machines.
Thanks!
Hi i tried to recreate this by having blockchain running on a unix machine and then i copied my connection profile and certificate to my mac and then edited my connection profile to update the ip address and key store. I then did a composer network ping and it worked fine.
I am using composer v0.7.4 so you could try that?
I have also faced this issue, and concluded that
There is inconsistent behavior while deploying network using composer on Cloud environment includeing Bluemix. Problem is not with composer, but with fabric 0.6.
I am assuming that this issue is also indirectly related to following known bugs into fabric 0.6, which will not be fixed in fabric 0.6.
ERROR:
"
throw er; // Unhandled 'error' event
^
Error
at ClientDuplexStream._emitStatusIfDone (/home/ubuntu/.nvm/versions/node/v6.9.5/lib/node_modules/composer-cli/node_modules/grpc/src/node/src/client.js:189:19)
at ClientDuplexStream._readsDone (/home/ubuntu/.nvm/versions/node/v6.9.5/lib/node_modules/composer-cli/node_modules/grpc/src/node/src/client.js:158:8)
at readCallback (/home/ubuntu/.nvm/versions/node/v6.9.5/lib/node_modules/composer-cli/node_modules/grpc/src/node/src/client.js:217:12)
"
So far, We have understood that following three JIRA are root cause , where essentially the cloud networking layer ends up killing the idle event hub connection after a period of inactivity and the fabric SDK cannot handle this.
https://jira.hyperledger.org/browse/FAB-4002 FAB-3310
https://jira.hyperledger.org/browse/FAB-3310
or FAB-2787
Conclusion:
There is no alternative way of fixing this issue with Bluemix or any cloud environment with fabric 0.6
You may not experience this issue with Fabric 1.0, but there is still possibilities as all above mentioned defects are not fixed yet.
I am new to the Google Vision API and I would like to conduct a label detection of approx. 10 images and I would like to run the vision quickstart.py file. However when I do this with only 3 images then it is successful. With more than 3 images I am getting the error message below. I know that I would need to change something at my setup, but I do not know what I should change.
Here is my error message:
google.gax.errors.RetryError: GaxError(Exception occurred in retry method
that was not classified as transient, caused by <_Rendezvous of RPC that
terminated with (StatusCode.RESOURCE_EXHAUSTED, Insufficient tokens for
quota 'DefaultGroup' and limit 'USER-100s' of service
'vision.googleapis.com' for consumer 'project_number: XXX'.)>)
Does anybody know what I need to do?
Any help would be much appreciated
Cheers,
Andi
I ran into the same problem and fixed it with these steps:
Make sure you have the Google Cloud SDK properly installed: https://cloud.google.com/vision/docs/reference/libraries
Setup a Service Account in the Google Cloud backend: https://developers.google.com/identity/protocols/OAuth2ServiceAccount#creatinganaccount
Create a Service Account Key and download it as a JSON file to a local folder. You need to keep the key private.
Export the filepath to the key-file as an environment variable: gcloud auth activate-service-account --key-file path/to/your/keyfile/here
Log out/in of the console.
Make sure, the environment variable is properly set with printenv
Try your py-script again...
Good luck...
Edit: In addition to the mentioned steps 1.-3. you can just do vision_client = vision.Client.from_service_account_json('/path/to/your/keyfile.json') in your script. No need for the env variable then.