Function checkSystemReq

src/utils/CaptainInstaller.ts:12–74

()

// No need to directly use Public IP.

function checkSystemReq() {
    return Promise.resolve()
        .then(function () {
            return DockerApi.get().getDockerVersion()
        })
        .then(function (output) {
            console.log(' ')
            console.log(' ')
            console.log(' ')
            console.log(' >>> Checking System Compatibility <<<')

            const ver = output.Version.split('.')
            const maj = Number(ver[0])
            const min = Number(ver[1])

            let versionOk = false

            if (maj > 17) {
                versionOk = true
            } else if (maj === 17 && min >= 6) {
                versionOk = true
            }

            if (versionOk) {
                console.log('   Docker Version passed.')
            } else {
                console.log(
                    'Warning!! Minimum Docker version is 17.06.x CapRover may not run properly on your Docker version.'
                )
            }

            return DockerApi.get().getDockerInfo()
        })
        .then(function (output) {
            if (output.OperatingSystem.toLowerCase().indexOf('ubuntu') < 0) {
                console.log(
                    '******* Warning *******    CapRover and Docker work best on Ubuntu - specially when it comes to storage drivers.'
                )
            } else {
                console.log('   Ubuntu detected.')
            }

            const totalMemInMb = Math.round(output.MemTotal / 1000.0 / 1000.0)

            if (totalMemInMb < 1000) {
                console.log(
                    '******* Warning *******   With less than 1GB RAM, Docker builds might fail, see CapRover system requirements.'
                )
            } else {
                console.log(`   Total RAM ${totalMemInMb} MB`)
            }
        })
        .catch(function (error) {
            console.log(' ')
            console.log(' ')
            console.log(
                '**** WARNING!!!! System requirement check failed!  *****'
            )