Read-only file system

[satviktechie1986]

Getting below Error

info Unknown encountered on server. Message:'System.IO.IOException: Read-only file system : '/CustomChromium'
at System.IO.FileSystem.CreateDirectory(String fullPath)
at System.IO.Directory.CreateDirectory(String path)
at VisionPlus.DocumentGeneration_AWSLambda.Function.FunctionHandler(ReportModel report, ILambdaContext context) in /home/vsts/work/1/s/VisionPlus.DocumentGeneration_AWSLambda/Function.cs:line 196 Message: Read-only file system : '/CustomChromium'' when reading object

using (Stream responseStream = response.ResponseStream)
{
//LambdaLogger.Log("step 1");
var bytes = ReadStream(responseStream);

//LambdaLogger.Log("step 2");
if (this.loggerFactory == null)
    this.loggerFactory = (ILoggerFactory)new LoggerFactory();


var currentDirectory = Directory.GetCurrentDirectory();
var downloadPath = Path.Combine(currentDirectory, "..", "..", "CustomChromium");

if (!Directory.Exists(downloadPath))
{
    Directory.CreateDirectory(downloadPath);
}

var browserFetcherOptions = new BrowserFetcherOptions { Path = downloadPath };
var browserFetcher = new BrowserFetcher(browserFetcherOptions);
await browserFetcher.DownloadAsync();

var executablePath = browserFetcher.GetExecutablePath(Guid.NewGuid().ToString());

var options = new LaunchOptions { Headless = true, ExecutablePath = executablePath };


//LambdaLogger.Log("step 3");
using (var browser = await Puppeteer.LaunchAsync(options)) 
using (var page = await browser.NewPageAsync())
{
    try
    {
        page.DefaultTimeout = 3600;
        LambdaLogger.Log("step 4");

        var html = responseBody;

        PdfOptions objnav = new PdfOptions();
        objnav.Format = PaperFormat.A4;
        objnav.PrintBackground = true;
        objnav.MarginOptions.Bottom = "2cm";
        objnav.MarginOptions.Top = "2cm";
        objnav.MarginOptions.Left = "1cm";
        objnav.MarginOptions.Right = "1cm";

        if (!string.IsNullOrEmpty(report.FooterTemplate))
        {
            objnav.DisplayHeaderFooter = true;
            objnav.HeaderTemplate = "<div/>";
            objnav.FooterTemplate = report.FooterTemplate;
        }

        if (html.Contains("<visionplus>"))
        {
            await page.SetContentAsync(await ReplaceTags(html, report.DocumentData, report));
        }
        else
        {
            await page.SetContentAsync(await ReplaceTagsWithBM(html, report.DocumentData, report));
        }
        var result = await page.GetContentAsync();

        //LambdaLogger.Log("Waiting for Lambda Upload");

        var resultFile = report.IsCustomMargin ? await page.PdfStreamAsync() : await page.PdfStreamAsync(objnav);
        await UploadFileStreamSync(resultFile, report.BucketName, s3ObjectKey);
        //LambdaLogger.Log(s3ObjectKey);
    }
    catch (Exception ex)
    {
        LambdaLogger.Log("reportData " + report.DocumentData);
        Console.WriteLine("Error encountered  " + ex.Message);
        return string.Empty;
    }
    finally
    {
        page.Close += Page_Close;
        browser.Closed += Browser_Closed;
        //await browser.CloseAsync();
    }

}

}

[kblok]

The error says Read-only file system did you check permissions?

[satviktechie1986]

The error says Read-only file system did you check permissions?

i have deployed on aws lambda with full permission , but still getting same error so i have changed the code as below
and it worked .

if (this.loggerFactory == null)
    this.loggerFactory = (ILoggerFactory)new LoggerFactory();


var browserLauncher = new HeadlessChromiumPuppeteerLauncher(loggerFactory);

using (var browser = await browserLauncher.LaunchAsync())
using (var page = await browser.NewPageAsync())
{
    try
    {
        page.DefaultTimeout = 3600;

        var html = responseBody;

        PdfOptions objnav = new PdfOptions();
        objnav.Format = PaperFormat.A4;
        objnav.PrintBackground = true;
        objnav.MarginOptions.Bottom = "2cm";
        objnav.MarginOptions.Top = "2cm";
        objnav.MarginOptions.Left = "1cm";
        objnav.MarginOptions.Right = "1cm";

        if (!string.IsNullOrEmpty(report.FooterTemplate))
        {
            objnav.DisplayHeaderFooter = true;
            objnav.HeaderTemplate = "<div/>";
            objnav.FooterTemplate = report.FooterTemplate;
        }

        if (html.Contains("<visionplus>"))
        {
            await page.SetContentAsync(await ReplaceTags(html, report.DocumentData, report));
        }
        else
        {
            await page.SetContentAsync(await ReplaceTagsWithBM(html, report.DocumentData, report));
        }
        var result = await page.GetContentAsync();


        var resultFile = report.IsCustomMargin ? await page.PdfStreamAsync() : await page.PdfStreamAsync(objnav);
        await UploadFileStreamSync(resultFile, report.BucketName, s3ObjectKey);
    }
    catch (Exception ex)
    {
        LambdaLogger.Log("reportData " + report.DocumentData);
        Console.WriteLine("Error encountered  " + ex.Message);
        return string.Empty;
    }
    finally
    {
        //page.Close += Page_Close;
        //browser.Closed += Browser_Closed;
        //await browser.CloseAsync();
    }

}

}