certificate signed by unknown authority"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"an error occured when fetching update","Level":"error","Location":"updater.go:220","Time":"2017-09-28 13:58:22.2
19353","error":"could not download requested resource","updater name":"rhel"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"could not download Oracle's update list","Level":"error","Location":"oracle.go:134","Time":"2017-09-28 13:58:22.249759","error":"Get https://linux.oracle.com/oval/: x509: certificate signed by unknown authority"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"an error occured when fetching update","Level":"error","Location":"updater.go:220","Time":"2017-09-28 13:58:22.249838","error":"could not download requested resource","updater name":"oracle"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"could not download Debian's update","Level":"error","Location":"debian.go:68","Time":"2017-09-28 13:58:22.277549","error":"Get https://security-tracker.debian.org/tracker/data/json: x509: certificate signed by unknown authority"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"an error occured when fetching update","Level":"error","Location":"updater.go:220","Time":"2017-09-28 13:58:22.277577","error":"could not download requested resource","updater name":"debian"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"could not branch Ubuntu repository","Level":"error","Location":"ubuntu.go:177","Time":"2017-09-28 13:58:22.655789","error":"exit status 3","output":"\nSee `bzr help ssl.ca_certs` for how to specify trusted CAcertificates.\nPass -Ossl.cert_reqs=none to disable certificate verification entirely.\n\nbzr: ERROR: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:661)\n"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"an error occured when fetching update","Level":"error","Location":"updater.go:220","Time":"2017-09-28 13:58:22.655844","error":"could not download requested resource","updater name":"ubuntu"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"could not pull alpine-secdb repository","Level":"error","Location":"alpine.go:186","Time":"2017-09-28 13:58:22.859488","error":"exit status 128","output":"Cloning into '.'...\nfatal: unable to access 'https://git.alpinelinux.org/cgit/alpine-secdb/': SSL certificate problem: unable to get local issuer certificate\n"}
Sep 28 13:58:22 172.18.0.1 clair[363]: {"Event":"an error occured when fetching update","Level":"error","Location":"updater.go:220","Time":"2017-09-28 13:58:22.859608","error":"could not download requested resource","updater name":"alpine"}
This issue occurs because the Clair service is not connected to the tracker repository URLs to initialize the vulnerability database correctly.
To resolve this issue, ensure to deploy the VIC Appliance on a network that can connect to the internet and download the updates for the vulnerability database creation.