/**
 * Update packages on given nodes
 *
 * Expected parameters:
 *   SALT_MASTER_CREDENTIALS    Credentials to the Salt API.
 *   SALT_MASTER_URL            Full Salt API address [https://10.10.10.1:8000].
 *   TARGET_SERVERS             Salt compound target to match nodes to be updated [*, G@osfamily:debian].
 *   TARGET_SUBSET_TEST         Number of nodes to list package updates, empty string means all targetted nodes.
 *   TARGET_SUBSET_LIVE         Number of selected nodes to live apply selected package update.
 *
**/

def common = new com.mirantis.mk.Common()
def salt = new com.mirantis.mk.Salt()

def saltMaster
def targetAll = ['expression': TARGET_SERVERS, 'type': 'compound']
def targetTestSubset
def targetLiveSubset
def targetLiveAll
def minions
def result
def args
def command
def commandKwargs
def probe = 1

node() {
    try {

        stage('Connect to Salt master') {
            saltMaster = salt.connection(SALT_MASTER_URL, SALT_MASTER_CREDENTIALS)
        }

        stage('List target servers') {
            minions = salt.getMinions(saltMaster, targetAll)

            if (minions.isEmpty()) {
                throw new Exception("No minion was targeted")
            }

            if (TARGET_SUBSET_TEST != "") {
                targetTestSubset = minions.subList(0, Integer.valueOf(TARGET_SUBSET_TEST)).join(' or ')
            } else {
                targetTestSubset = minions.join(' or ')
            }
            targetLiveSubset = minions.subList(0, Integer.valueOf(TARGET_SUBSET_LIVE)).join(' or ')
            targetTestSubsetProbe = minions.subList(0, probe).join(' or ')
            targetLiveSubsetProbe = minions.subList(0, probe).join(' or ')

            targetLiveAll = minions.join(' or ')
            common.infoMsg("Found nodes: ${targetLiveAll}")
            common.infoMsg("Selected test nodes: ${targetTestSubset}")
            common.infoMsg("Selected sample nodes: ${targetLiveSubset}")
        }


        stage("Add new repos on test nodes") {
            salt.enforceState(saltMaster, targetTestSubset, 'linux.system.repo')
        }


        opencontrail = null

        try {
            opencontrail = salt.cmdRun(saltMaster, targetTestSubsetProbe, "salt-call grains.item roles | grep opencontrail.compute")
            print(opencontrail)
        } catch (Exception er) {
            common.infoMsg("opencontrail is not used")
        }

        if(opencontrail != null) {
            stage('Remove OC component from repos on test nodes') {
                salt.cmdRun(saltMaster, targetTestSubset, "find /etc/apt/sources.list* -type f -print0 | xargs -0 sed -i -r -e 's/ oc([0-9]*) / /g'")
                salt.runSaltProcessStep(saltMaster, targetTestSubset, 'pkg.refresh_db', [], null, true)
            }
        }

        stage("List package upgrades") {
            salt.runSaltProcessStep(saltMaster, targetTestSubset, 'pkg.list_upgrades', [], null, true)
        }

        stage('Confirm upgrade on sample nodes') {
            input message: "Please verify the list of packages that you want to be upgraded. Do you want to continue with upgrade?"
        }

        stage("Add new repos on sample nodes") {
            salt.enforceState(saltMaster, targetLiveSubset, 'linux.system.repo')
        }

        if(opencontrail != null) {
            stage('Remove OC component from repos on sample nodes') {
                salt.cmdRun(saltMaster, targetLiveSubset, "find /etc/apt/sources.list* -type f -print0 | xargs -0 sed -i -r -e 's/ oc([0-9]*) / /g'")
                salt.runSaltProcessStep(saltMaster, targetLiveSubset, 'pkg.refresh_db', [], null, true)
            }
        }

        args = "apt-get -y -s -o Dpkg::Options::=\"--force-confdef\" -o Dpkg::Options::=\"--force-confold\" dist-upgrade"

        stage('Test upgrade on sample') {
            try {
                salt.cmdRun(saltMaster, targetLiveSubset, args)
            } catch (Exception er) {
                print(er)
            }
        }

        stage('Confirm upgrade on sample') {
            input message: "Please verify if there are packages that it wants to downgrade. If so, execute apt-cache policy on them and verify if everything is fine. Do you want to continue with upgrade?"
        }

        command = "cmd.run"
        args = 'export DEBIAN_FRONTEND=noninteractive; apt-get -y -q --allow-downgrades -o Dpkg::Options::=\"--force-confdef\" -o Dpkg::Options::=\"--force-confold\" dist-upgrade;'

        stage('Apply package upgrades on sample') {
            out = salt.runSaltCommand(saltMaster, 'local', ['expression': targetLiveSubset, 'type': 'compound'], command, null, args, commandKwargs)
            salt.printSaltCommandResult(out)
        }

        openvswitch = null

        try {
            openvswitch = salt.cmdRun(saltMaster, targetLiveSubsetProbe, "salt-call grains.item roles | grep neutron.compute")
        } catch (Exception er) {
            common.infoMsg("openvswitch is not used")
        }

        if(openvswitch != null) {
            args = "sudo /usr/share/openvswitch/scripts/ovs-ctl start"

            stage('Start ovs on sample nodes') {
                out = salt.runSaltCommand(saltMaster, 'local', ['expression': targetLiveSubset, 'type': 'compound'], command, null, args, commandKwargs)
                salt.printSaltCommandResult(out)
            }
            stage("Run salt states on sample nodes") {
                salt.enforceState(saltMaster, targetLiveSubset, ['nova', 'neutron'])
            }
        } else {
            stage("Run salt states on sample nodes") {
                salt.enforceState(saltMaster, targetLiveSubset, ['nova', 'linux.system.repo'])
            }
        }

        stage("Run Highstate on sample nodes") {
            try {
                salt.enforceHighstate(saltMaster, targetLiveSubset)
            } catch (Exception er) {
                common.errorMsg("Highstate was executed on ${targetLiveSubset} but something failed. Please check it and fix it accordingly.")
            }
        }

        stage('Confirm upgrade on all targeted nodes') {
            timeout(time: 2, unit: 'HOURS') {
               input message: "Verify that the upgraded sample nodes are working correctly. If so, do you want to approve live upgrade on ${targetLiveAll} nodes?"
            }
        }

        stage("Add new repos on all targeted nodes") {
            salt.enforceState(saltMaster, targetLiveAll, 'linux.system.repo')
        }

        if(opencontrail != null) { 
            stage('Remove OC component from repos on all targeted nodes') {
                salt.cmdRun(saltMaster, targetLiveAll, "find /etc/apt/sources.list* -type f -print0 | xargs -0 sed -i -r -e 's/ oc([0-9]*) / /g'")
                salt.runSaltProcessStep(saltMaster, targetLiveAll, 'pkg.refresh_db', [], null, true)
            }
        }

        args = 'export DEBIAN_FRONTEND=noninteractive; apt-get -y -q --allow-downgrades -o Dpkg::Options::=\"--force-confdef\" -o Dpkg::Options::=\"--force-confold\" dist-upgrade;'

        stage('Apply package upgrades on all targeted nodes') {
            out = salt.runSaltCommand(saltMaster, 'local', ['expression': targetLiveAll, 'type': 'compound'], command, null, args, commandKwargs)
            salt.printSaltCommandResult(out)
        }

        if(openvswitch != null) {
            args = "sudo /usr/share/openvswitch/scripts/ovs-ctl start"

            stage('Start ovs on all targeted nodes') {
                out = salt.runSaltCommand(saltMaster, 'local', ['expression': targetLiveAll, 'type': 'compound'], command, null, args, commandKwargs)
                salt.printSaltCommandResult(out)
            }
            stage("Run salt states on all targeted nodes") {
                salt.enforceState(saltMaster, targetLiveAll, ['nova', 'neutron'])
            }
        } else {
            stage("Run salt states on all targeted nodes") {
                salt.enforceState(saltMaster, targetLiveAll, ['nova', 'linux.system.repo'])
            }
        }

        stage("Run Highstate on all targeted nodes") {
            try {
                salt.enforceHighstate(saltMaster, targetLiveAll)
            } catch (Exception er) {
                common.errorMsg("Highstate was executed ${targetLiveAll} but something failed. Please check it and fix it accordingly.")
            }
        }

    } catch (Throwable e) {
        // If there was an error or exception thrown, the build failed
        currentBuild.result = "FAILURE"
        throw e
    }
}