8000 Digital Ocean implementation of `StartNodes` and `StopTestnet` by sergio-mena · Pull Request #846 · cometbft/cometbft · GitHub
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Digital Ocean implementation of StartNodes and StopTestnet #846

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Merged
merged 2 commits into from
May 16, 2023
Merged

Digital Ocean implementation of StartNodes and StopTestnet #846

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4272850
ansible start 1st ver
sergio-mena May 5, 2023
19d833a
fixes
sergio-mena May 5, 2023
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72 changes: 67 additions & 5 deletions test/e2e/pkg/infra/digitalocean/digitalocean.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,13 @@ package digitalocean

import (
"context"
"fmt"
"os"
"path/filepath"
"strings"

e2e "github.com/cometbft/cometbft/test/e2e/pkg"
"github.com/cometbft/cometbft/test/e2e/pkg/exec"
"github.com/cometbft/cometbft/test/e2e/pkg/infra"
)

Expand All @@ -19,11 +24,68 @@ func (p *Provider) Setup() error {
return nil
}

func (p Provider) StartNodes(_ context.Context, _ ...*e2e.Node) error {
//TODO Not implemented (next PR)
return nil
const ymlSystemd = "systemd-action.yml"

func (p Provider) StartNodes(ctx context.Context, nodes ...*e2e.Node) error {
nodeIPs := make([]string, len(nodes))
for i, n := range nodes {
nodeIPs[i] = n.ExternalIP.String()
}
if err := p.writePlaybook(ymlSystemd, true); err != nil {
return err
}

return execAnsible(ctx, p.Testnet.Dir, ymlSystemd, nodeIPs)
}
func (p Provider) StopTestnet(_ context.Context) error {
//TODO Not implemented (next PR)
func (p Provider) StopTestnet(ctx context.Context) error {
nodeIPs := make([]string, len(p.Testnet.Nodes))
for i, n := range p.Testnet.Nodes {
nodeIPs[i] = n.ExternalIP.String()
}

if err := p.writePlaybook(ymlSystemd, false); err != nil {
return err
}
return execAnsible(ctx, p.Testnet.Dir, ymlSystemd, nodeIPs)
}

func (p Provider) writePlaybook(yaml string, starting bool) error {
playbook := ansibleSystemdBytes(starting)
//nolint: gosec
// G306: Expect WriteFile permissions to be 0600 or less
err := os.WriteFile(filepath.Join(p.Testnet.Dir, yaml), []byte(playbook), 0o644)
if err != nil {
return err
}< 7FB1 /span>
return nil
}

// file as bytes to be written out to disk.
// ansibleStartBytes generates an Ansible playbook to start the network
func ansibleSystemdBytes(starting bool) string {
startStop := "stopped"
if starting {
startStop = "started"
}
playbook := fmt.Sprintf(`- name: start/stop testapp
hosts: all
gather_facts: yes
vars:
ansible_host_key_checking: false

tasks:
- name: operate on the systemd-unit
ansible.builtin.systemd:
name: testappd
state: %s
enabled: yes`, startStop)
return playbook
}

// ExecCompose runs a Docker Compose command for a testnet.
func execAnsible(ctx context.Context, dir, playbook string, nodeIPs []string, args ...string) error {
playbook = filepath.Join(dir, playbook)
return exec.CommandVerbose(ctx, append(
[]string{"ansible-playbook", playbook, "-f", "50", "-u", "root", "--inventory", strings.Join(nodeIPs, ",") + ","},
args...)...)
}
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