public async Task SaveSshKnownHostsSecret()
{
var sshHost = await sshHostLookup.Value;
var ip = await machineIpManager.GetExternalIp();
await vmManager.SetSecurityRuleAccess(config.NsgName, config.ResourceGroup, SshRuleName, "Allow", ip);
String key;
int retry = 0;
do
{
logger.LogInformation($"Trying key scan connection to '{sshHost}'. Retry '{retry}'.");
var builder = shellRunner.CreateCommandBuilder();
builder.AddCommand($"$key = ssh-keyscan -t rsa {sshHost}");
builder.AddResultCommand($"$key | ConvertTo-Json -Depth 10");
key = shellRunner.RunProcess <String>(builder);
if (++retry > 100)
{
throw new InvalidOperationException($"Retried ssh-keyscan '{retry}' times. Giving up.");
}
} while (String.IsNullOrEmpty(key));
var existing = await keyVaultManager.GetSecret(config.InfraKeyVaultName, config.SshKnownHostKey);
if (existing != null && existing != key)
{
logger.LogInformation($"Current saved server key (top) does not match current key on server (bottom). \n'{existing}'\n{key}");
logger.LogInformation("If this is because the vm was recreated please enter y below. Otherwise this will be considered an error and the provisioning will stop.");
if (!"y".Equals(Console.ReadLine(), StringComparison.InvariantCultureIgnoreCase))
{
throw new InvalidOperationException("The ssh keys did not match and were rejected by the user. Key vault not updated.");
}
}
await keyVaultManager.SetSecret(config.InfraKeyVaultName, config.SshKnownHostKey, key);
}
public string FindLatestImage(string image, string baseTag, string currentTag)
{
//Get the tags from docker
var args = $"";
var searchTag = $"{image}:{currentTag}";
var format = "{{json .RepoTags}}";
var tags = shellRunner.RunProcess <List <String> >($"docker inspect --format={format} {searchTag}");
//Remove any tags that weren't set by this software
tags.Remove($"{image}:{currentTag}");
var tagFilter = $"{image}:{baseTag}";
tags = tags.Where(i => i.StartsWith(tagFilter)).ToList();
tags.Sort(); //Docker seems to store these in order, but sort them by their names, the tags are date based and the latest will always be last
var latestDateTag = tags.LastOrDefault();
if (latestDateTag == null)
{
throw new InvalidOperationException($"Cannot find a tag in the format '{tagFilter}' on image '{image}'.");
}
return(latestDateTag);
}
public AccountShowOutput?Show()
{
return(powershellCoreRunner.RunProcess <AccountShowOutput>($"az account show", "Error getting account info."));
}