fix: ensure ipv4 is present for app deploys
continuous-integration/drone/push Build is passing
Details
continuous-integration/drone/push Build is passing
Details
See coop-cloud/organising#227.
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@ -8,6 +8,7 @@ import (
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"coopcloud.tech/abra/pkg/catalogue"
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"coopcloud.tech/abra/pkg/client"
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"coopcloud.tech/abra/pkg/config"
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"coopcloud.tech/abra/pkg/dns"
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"coopcloud.tech/abra/pkg/recipe"
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"coopcloud.tech/abra/pkg/upstream/stack"
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"github.com/AlecAivazis/survey/v2"
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@ -107,6 +108,12 @@ func DeployAction(c *cli.Context) error {
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logrus.Fatal(err)
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}
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domainName := app.Env["DOMAIN"]
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ipv4, err := dns.EnsureIPv4(domainName)
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if err != nil || ipv4 == "" {
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logrus.Fatalf("could not find an IP address assigned to %s?", domainName)
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}
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if err := stack.RunDeploy(cl, deployOpts, compose); err != nil {
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logrus.Fatal(err)
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}
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@ -1,23 +1,21 @@
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package server
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import (
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"context"
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"errors"
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"fmt"
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"net"
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"os"
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"os/exec"
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"os/user"
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"path"
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"path/filepath"
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"strings"
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"time"
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abraFormatter "coopcloud.tech/abra/cli/formatter"
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"coopcloud.tech/abra/cli/internal"
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"coopcloud.tech/abra/pkg/client"
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"coopcloud.tech/abra/pkg/config"
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contextPkg "coopcloud.tech/abra/pkg/context"
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"coopcloud.tech/abra/pkg/dns"
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"coopcloud.tech/abra/pkg/server"
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"coopcloud.tech/abra/pkg/ssh"
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"github.com/AlecAivazis/survey/v2"
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@ -268,33 +266,11 @@ func initSwarmLocal(c *cli.Context, cl *dockerClient.Client, domainName string)
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}
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func initSwarm(c *cli.Context, cl *dockerClient.Client, domainName string) error {
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// comrade librehosters DNS resolver -> https://www.privacy-handbuch.de/handbuch_93d.htm
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freifunkDNS := "5.1.66.255:53"
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resolver := &net.Resolver{
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PreferGo: false,
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Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
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d := net.Dialer{
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Timeout: time.Millisecond * time.Duration(10000),
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}
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return d.DialContext(ctx, "udp", freifunkDNS)
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},
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}
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logrus.Debugf("created DNS resolver via '%s'", freifunkDNS)
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ips, err := resolver.LookupIPAddr(c.Context, domainName)
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ipv4, err := dns.EnsureIPv4(domainName)
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if err != nil {
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return err
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}
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if len(ips) == 0 {
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return fmt.Errorf("unable to retrieve ipv4 address for %s", domainName)
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}
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ipv4 := ips[0].IP.To4().String()
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logrus.Debugf("discovered the following ipv4 addr: %s", ipv4)
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initReq := swarm.InitRequest{
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ListenAddr: "0.0.0.0:2377",
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AdvertiseAddr: ipv4,
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@ -1,8 +1,11 @@
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package dns
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import (
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"context"
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"fmt"
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"net"
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"os"
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"time"
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"github.com/AlecAivazis/survey/v2"
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"github.com/sirupsen/logrus"
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@ -26,3 +29,38 @@ func NewToken(provider, providerTokenEnvVar string) (string, error) {
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return token, nil
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}
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// EnsureIPv4 ensures that an ipv4 address is set for a domain name
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func EnsureIPv4(domainName string) (string, error) {
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var ipv4 string
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// comrade librehosters DNS resolver -> https://www.privacy-handbuch.de/handbuch_93d.htm
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freifunkDNS := "5.1.66.255:53"
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resolver := &net.Resolver{
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PreferGo: false,
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Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
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d := net.Dialer{
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Timeout: time.Millisecond * time.Duration(10000),
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}
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return d.DialContext(ctx, "udp", freifunkDNS)
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},
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}
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logrus.Debugf("created DNS resolver via '%s'", freifunkDNS)
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ctx := context.Background()
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ips, err := resolver.LookupIPAddr(ctx, domainName)
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if err != nil {
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return ipv4, err
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}
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if len(ips) == 0 {
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return ipv4, fmt.Errorf("unable to retrieve ipv4 address for %s", domainName)
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}
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ipv4 = ips[0].IP.To4().String()
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logrus.Debugf("discovered the following ipv4 addr: %s", ipv4)
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return ipv4, nil
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}
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